- Joined
- Sep 28, 2013
- Messages
- 2,663
Hi all, since it seems there is a resurgence in interest in moonstone and other feldspar recently, I thought I'd start a thread that consolidated previous threads in one place, so that it's easier to find information and photos.
Please post information and/or photo eyecandy related to feldspar here! I'm guessing that we will see more posts mostly related to feldspar that can be used in jewelry (orthoclase moonstone, labradorite, sunstone) but all feldspar-related talk welcome here.
I'm not an expert on PS or on feldspar, please feel free to add to this thread or correct any errors.
First of all, a list of feldspar, taken from http://en.wikipedia.org/wiki/Feldspar
Alkali feldspars
orthoclase (monoclinic), ] — KAlSi3O8
sanidine (monoclinic) —(K,Na)AlSi3O8
microcline (triclinic) — KAlSi3O8
anorthoclase (triclinic) — (Na,K)AlSi3O8
Plagioclase feldspars
albite — NaAlSi3O8
oligoclase — (Na,Ca)(Al,Si)AlSi2O8
andesine — NaAlSi3O8 — CaAl2Si2O8
labradorite — (Ca,Na)Al(Al,Si)Si2O8
bytownite — (NaSi,CaAl)AlSi2O8
anorthite — CaAl2Si2O8
Barium feldspars
celsian — BaAl2Si2O8
hyalophane — (K,Na,Ba)(Al,Si)4O8
***
Previous PS threads related to moonstone, labradorite, sunstone and/or other feldspar:
Moonstone:
[URL='https://www.pricescope.com/community/threads/over-the-moon-stone-a-glowing-stone-in-a-diamond-halo.207888/']https://www.pricescope.com/community/threads/over-the-moon-stone-a-glowing-stone-in-a-diamond-halo.207888/[/URL]
[URL='https://www.pricescope.com/community/threads/new-pendant-earing-t-v-stone.33215/']https://www.pricescope.com/community/threads/new-pendant-earing-t-v-stone.33215/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstones.29242/']https://www.pricescope.com/community/threads/moonstones.29242/[/URL]
[URL='https://www.pricescope.com/community/threads/what-to-look-for-in-quality-blue-moonstone.165533/']https://www.pricescope.com/community/threads/what-to-look-for-in-quality-blue-moonstone.165533/[/URL]
[URL='https://www.pricescope.com/community/threads/art-nouveau-moonstone-ring.121184/']https://www.pricescope.com/community/threads/art-nouveau-moonstone-ring.121184/[/URL]
[URL='https://www.pricescope.com/community/threads/repolish-georg-jensen-cabochon-moonstone.106736/']https://www.pricescope.com/community/threads/repolish-georg-jensen-cabochon-moonstone.106736/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-diamond-platinum-ring-good-buy.205966/']https://www.pricescope.com/community/threads/moonstone-diamond-platinum-ring-good-buy.205966/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-pendant.205965/']https://www.pricescope.com/community/threads/moonstone-pendant.205965/[/URL]
[URL='https://www.pricescope.com/community/threads/i-need-moonstone-help-i-am-in-moonstone-hell.201798/']https://www.pricescope.com/community/threads/i-need-moonstone-help-i-am-in-moonstone-hell.201798/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-questions.133146/']https://www.pricescope.com/community/threads/moonstone-questions.133146/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-necklace.204895/']https://www.pricescope.com/community/threads/moonstone-necklace.204895/[/URL]
[URL='https://www.pricescope.com/community/threads/deco-is-my-moonshine-or-platinum-moonstone-ring.207169/']https://www.pricescope.com/community/threads/deco-is-my-moonshine-or-platinum-moonstone-ring.207169/[/URL]
[URL='https://www.pricescope.com/community/threads/faceted-moonstone-vs-cabochon.153458/']https://www.pricescope.com/community/threads/faceted-moonstone-vs-cabochon.153458/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-e-ring-and-band-set.101388/']https://www.pricescope.com/community/threads/moonstone-e-ring-and-band-set.101388/[/URL]
[URL='https://www.pricescope.com/community/threads/please-help-inspire-a-moonstone-station-necklace.167545/']https://www.pricescope.com/community/threads/please-help-inspire-a-moonstone-station-necklace.167545/[/URL]
[URL='https://www.pricescope.com/community/threads/where-can-i-find-moonstones.208423/page-2']https://www.pricescope.com/community/threads/where-can-i-find-moonstones.208423/page-2[/URL]
[URL='https://www.pricescope.com/community/threads/new-blue-moonstone-earrings.174465/']https://www.pricescope.com/community/threads/new-blue-moonstone-earrings.174465/[/URL]
[URL='https://www.pricescope.com/community/threads/what-do-you-think-of-this-moonstone.153093/']https://www.pricescope.com/community/threads/what-do-you-think-of-this-moonstone.153093/[/URL]
[URL='https://www.pricescope.com/community/threads/monster-pearl-pendant-with-blue-moonstone.174938/']https://www.pricescope.com/community/threads/monster-pearl-pendant-with-blue-moonstone.174938/[/URL]
[URL='https://www.pricescope.com/community/threads/new-rainbow-moonstone.101860/']https://www.pricescope.com/community/threads/new-rainbow-moonstone.101860/[/URL]
[URL='https://www.pricescope.com/community/threads/questions-about-moonstone.152704/']https://www.pricescope.com/community/threads/questions-about-moonstone.152704/[/URL]
[URL='https://www.pricescope.com/community/threads/ball-parure-moonstone-iolite-and-tsavorite.160090/']https://www.pricescope.com/community/threads/ball-parure-moonstone-iolite-and-tsavorite.160090/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-chrysoprase-earrings.148005/']https://www.pricescope.com/community/threads/moonstone-chrysoprase-earrings.148005/[/URL]
[URL='https://www.pricescope.com/community/threads/show-me-your-moonstones.148266/']https://www.pricescope.com/community/threads/show-me-your-moonstones.148266/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-ring.42390/']https://www.pricescope.com/community/threads/moonstone-ring.42390/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstones-in-india.149789/']https://www.pricescope.com/community/threads/moonstones-in-india.149789/[/URL]
https://www.pricescope.com/blog/kimberly-mcdonald-adorns-michelle-obama-dnc (peach moonstone)
https://www.pricescope.com/blog/temple-st-clair-jcks-luxury-elite-enclave
https://www.pricescope.com/blog/romantic-station-necklaces-long-and-layered-holidays
Sunstone:
[URL='https://www.pricescope.com/community/threads/goldstone.51146/']https://www.pricescope.com/community/threads/goldstone.51146/[/URL]
[URL='https://www.pricescope.com/community/threads/picture-of-blue-oregon-sunstone.24152/']https://www.pricescope.com/community/threads/picture-of-blue-oregon-sunstone.24152/[/URL]
[URL='https://www.pricescope.com/community/threads/oregon-sunstone-has-arrived.95428/']https://www.pricescope.com/community/threads/oregon-sunstone-has-arrived.95428/[/URL]
[URL='https://www.pricescope.com/community/threads/whats-the-story-with-the-copper-bearing-sunstones.200154/']https://www.pricescope.com/community/threads/whats-the-story-with-the-copper-bearing-sunstones.200154/[/URL]
Other/General feldspar:
[URL='https://www.pricescope.com/community/threads/feldspars-isomorphic-also.62499/']https://www.pricescope.com/community/threads/feldspars-isomorphic-also.62499/[/URL]
[URL='https://www.pricescope.com/community/threads/richard-hughes-visits-red-andesine-mine-in-tibet.151760/']https://www.pricescope.com/community/threads/richard-hughes-visits-red-andesine-mine-in-tibet.151760/[/URL]
[URL='https://www.pricescope.com/community/threads/havent-read-much-here-about-red-andesine.184445/']https://www.pricescope.com/community/threads/havent-read-much-here-about-red-andesine.184445/[/URL]
[URL='https://www.pricescope.com/community/threads/s-p-e-c-t-r-e.152385/']https://www.pricescope.com/community/threads/s-p-e-c-t-r-e.152385/[/URL]
[URL='https://www.pricescope.com/community/threads/spectrolite.28733/']https://www.pricescope.com/community/threads/spectrolite.28733/[/URL]
Please post information and/or photo eyecandy related to feldspar here! I'm guessing that we will see more posts mostly related to feldspar that can be used in jewelry (orthoclase moonstone, labradorite, sunstone) but all feldspar-related talk welcome here.
I'm not an expert on PS or on feldspar, please feel free to add to this thread or correct any errors.

First of all, a list of feldspar, taken from http://en.wikipedia.org/wiki/Feldspar
Alkali feldspars
orthoclase (monoclinic), ] — KAlSi3O8
sanidine (monoclinic) —(K,Na)AlSi3O8
microcline (triclinic) — KAlSi3O8
anorthoclase (triclinic) — (Na,K)AlSi3O8
Plagioclase feldspars
albite — NaAlSi3O8
oligoclase — (Na,Ca)(Al,Si)AlSi2O8
andesine — NaAlSi3O8 — CaAl2Si2O8
labradorite — (Ca,Na)Al(Al,Si)Si2O8
bytownite — (NaSi,CaAl)AlSi2O8
anorthite — CaAl2Si2O8
Barium feldspars
celsian — BaAl2Si2O8
hyalophane — (K,Na,Ba)(Al,Si)4O8
***
Previous PS threads related to moonstone, labradorite, sunstone and/or other feldspar:
Moonstone:
[URL='https://www.pricescope.com/community/threads/over-the-moon-stone-a-glowing-stone-in-a-diamond-halo.207888/']https://www.pricescope.com/community/threads/over-the-moon-stone-a-glowing-stone-in-a-diamond-halo.207888/[/URL]
[URL='https://www.pricescope.com/community/threads/new-pendant-earing-t-v-stone.33215/']https://www.pricescope.com/community/threads/new-pendant-earing-t-v-stone.33215/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstones.29242/']https://www.pricescope.com/community/threads/moonstones.29242/[/URL]
[URL='https://www.pricescope.com/community/threads/what-to-look-for-in-quality-blue-moonstone.165533/']https://www.pricescope.com/community/threads/what-to-look-for-in-quality-blue-moonstone.165533/[/URL]
[URL='https://www.pricescope.com/community/threads/art-nouveau-moonstone-ring.121184/']https://www.pricescope.com/community/threads/art-nouveau-moonstone-ring.121184/[/URL]
[URL='https://www.pricescope.com/community/threads/repolish-georg-jensen-cabochon-moonstone.106736/']https://www.pricescope.com/community/threads/repolish-georg-jensen-cabochon-moonstone.106736/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-diamond-platinum-ring-good-buy.205966/']https://www.pricescope.com/community/threads/moonstone-diamond-platinum-ring-good-buy.205966/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-pendant.205965/']https://www.pricescope.com/community/threads/moonstone-pendant.205965/[/URL]
[URL='https://www.pricescope.com/community/threads/i-need-moonstone-help-i-am-in-moonstone-hell.201798/']https://www.pricescope.com/community/threads/i-need-moonstone-help-i-am-in-moonstone-hell.201798/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-questions.133146/']https://www.pricescope.com/community/threads/moonstone-questions.133146/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-necklace.204895/']https://www.pricescope.com/community/threads/moonstone-necklace.204895/[/URL]
[URL='https://www.pricescope.com/community/threads/deco-is-my-moonshine-or-platinum-moonstone-ring.207169/']https://www.pricescope.com/community/threads/deco-is-my-moonshine-or-platinum-moonstone-ring.207169/[/URL]
[URL='https://www.pricescope.com/community/threads/faceted-moonstone-vs-cabochon.153458/']https://www.pricescope.com/community/threads/faceted-moonstone-vs-cabochon.153458/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-e-ring-and-band-set.101388/']https://www.pricescope.com/community/threads/moonstone-e-ring-and-band-set.101388/[/URL]
[URL='https://www.pricescope.com/community/threads/please-help-inspire-a-moonstone-station-necklace.167545/']https://www.pricescope.com/community/threads/please-help-inspire-a-moonstone-station-necklace.167545/[/URL]
[URL='https://www.pricescope.com/community/threads/where-can-i-find-moonstones.208423/page-2']https://www.pricescope.com/community/threads/where-can-i-find-moonstones.208423/page-2[/URL]
[URL='https://www.pricescope.com/community/threads/new-blue-moonstone-earrings.174465/']https://www.pricescope.com/community/threads/new-blue-moonstone-earrings.174465/[/URL]
[URL='https://www.pricescope.com/community/threads/what-do-you-think-of-this-moonstone.153093/']https://www.pricescope.com/community/threads/what-do-you-think-of-this-moonstone.153093/[/URL]
[URL='https://www.pricescope.com/community/threads/monster-pearl-pendant-with-blue-moonstone.174938/']https://www.pricescope.com/community/threads/monster-pearl-pendant-with-blue-moonstone.174938/[/URL]
[URL='https://www.pricescope.com/community/threads/new-rainbow-moonstone.101860/']https://www.pricescope.com/community/threads/new-rainbow-moonstone.101860/[/URL]
[URL='https://www.pricescope.com/community/threads/questions-about-moonstone.152704/']https://www.pricescope.com/community/threads/questions-about-moonstone.152704/[/URL]
[URL='https://www.pricescope.com/community/threads/ball-parure-moonstone-iolite-and-tsavorite.160090/']https://www.pricescope.com/community/threads/ball-parure-moonstone-iolite-and-tsavorite.160090/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-chrysoprase-earrings.148005/']https://www.pricescope.com/community/threads/moonstone-chrysoprase-earrings.148005/[/URL]
[URL='https://www.pricescope.com/community/threads/show-me-your-moonstones.148266/']https://www.pricescope.com/community/threads/show-me-your-moonstones.148266/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstone-ring.42390/']https://www.pricescope.com/community/threads/moonstone-ring.42390/[/URL]
[URL='https://www.pricescope.com/community/threads/moonstones-in-india.149789/']https://www.pricescope.com/community/threads/moonstones-in-india.149789/[/URL]
https://www.pricescope.com/blog/kimberly-mcdonald-adorns-michelle-obama-dnc (peach moonstone)
https://www.pricescope.com/blog/temple-st-clair-jcks-luxury-elite-enclave
https://www.pricescope.com/blog/romantic-station-necklaces-long-and-layered-holidays
Sunstone:
[URL='https://www.pricescope.com/community/threads/goldstone.51146/']https://www.pricescope.com/community/threads/goldstone.51146/[/URL]
[URL='https://www.pricescope.com/community/threads/picture-of-blue-oregon-sunstone.24152/']https://www.pricescope.com/community/threads/picture-of-blue-oregon-sunstone.24152/[/URL]
[URL='https://www.pricescope.com/community/threads/oregon-sunstone-has-arrived.95428/']https://www.pricescope.com/community/threads/oregon-sunstone-has-arrived.95428/[/URL]
[URL='https://www.pricescope.com/community/threads/whats-the-story-with-the-copper-bearing-sunstones.200154/']https://www.pricescope.com/community/threads/whats-the-story-with-the-copper-bearing-sunstones.200154/[/URL]
Other/General feldspar:
[URL='https://www.pricescope.com/community/threads/feldspars-isomorphic-also.62499/']https://www.pricescope.com/community/threads/feldspars-isomorphic-also.62499/[/URL]
[URL='https://www.pricescope.com/community/threads/richard-hughes-visits-red-andesine-mine-in-tibet.151760/']https://www.pricescope.com/community/threads/richard-hughes-visits-red-andesine-mine-in-tibet.151760/[/URL]
[URL='https://www.pricescope.com/community/threads/havent-read-much-here-about-red-andesine.184445/']https://www.pricescope.com/community/threads/havent-read-much-here-about-red-andesine.184445/[/URL]
[URL='https://www.pricescope.com/community/threads/s-p-e-c-t-r-e.152385/']https://www.pricescope.com/community/threads/s-p-e-c-t-r-e.152385/[/URL]
[URL='https://www.pricescope.com/community/threads/spectrolite.28733/']https://www.pricescope.com/community/threads/spectrolite.28733/[/URL]