What color is it?: Generally a pastel yellow as shown above, ranging to pink and colorless.
What is the story behind this gemstone?: This is a very unique gemstone that offers some beautiful pastel colors. It is rather difficult to find so if you see one in a store or at a gem show don't hesitate to buy it. You may not see it again for quite a while. And be prepared to see mainly small stones. It rarely occurs in large crystals. The specimen above weighs 2.26 carats and is considered a rather large petalite.
Can I wear it everyday?: Yes, for a necklace. But it is rather brittle so don't try to wear it in a ring. It will be very hard to replace if you break it.
Is it expensive?: It can be. About the same as a nice quality pink tourmaline.
Is it a birthstone?: No.
What do I need to know before going shopping?: Call ahead. Few jewelers will normally carry this rare gemstone in their inventories. Best bet may be to visit your local gem show. This may be a stone that only a lapidary or gem dealer will carry. But if at all possible...ask your local independent retail jeweler to find a petalite for you. This will be the only way you will know that you are getting the real thing.
Source: Australia, Brazil and Sweden and the main suppliers
Chemical: (LiNa)(AlSiO4O10) lithium sodium aluminum silicate
Formation: In igneous rocks, often in conjunction with spodumene (kunzite) due to lithium content in each
Crystal System: Monoclinic
Unusual Properties: None. But it will turn a flame red...if you have nothing else to do but put this rare gemstone in an open fire.
RI: 1.502 - 1.518
Optic Character: B +
Specific Gravity: 2.40
Transparency: TP - TL in gem quality faceted stones. May be opaque in massive formations.
Special Identifying Properties and Tests: None
Imitations: May be confused with some feldspars and/or glass.
|© 2011 YourGemologist.com and Robert James FGA, GG. All Rights Reserved. No part of this website may be copied, duplicated, distributed or posted to another website without the expressed written consent of the copyright holder.|