A crystallographic specimen of this mineral species, a rare aluminum chlorine sorosilicate with fluorine. We performed some X ray diffraction studies that confirmed the species. We recommend an interesting article about this Iranian deposit in the magazine Rocks and Minerals . Size: 5.5 x 5.2 x 4 cm. Main crystal: 8 mm edge.
NATIONAL GEOGRAPHIC Rocks and Minerals Education Set 15 Piece Rock Collection Starter Kit with Tigers Eye, Rose Quartz, Red Jasper, and More, Display Case and Identification Guide. 4.7 out of 5 stars. 1,346. $14.99. $14. . 99. 10% coupon applied at checkout. Save 10% with coupon.