Colorado Beryl |
Colorado Beryl |
Jun 1 2015, 05:44 PM
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Rock Bar! Group: Members Posts: 898 Joined: 9-January 14 From: Denver, CO Member No.: 116,265 |
Beryl
System: Hexagonal Hardness: 7.5-8 Specific Gravity 2.65-2.90 Streak: White Transparent to translucent. Imperfect basal cleavage Vitreous luster Gem quality Beryl can go under other names depending on the color: Aquamarine(blue), Goshenite(clear/colorless), Heliodor(Yellow), Morganite(pink) and Emerald(green). A few of then can fluoresce under UV light (Morganite/lilac color)(Heliodor/blue) Colorado has several geological systems that have produced Beryl, however finding gem quality Beryl can be rare. Most notable is Aquamarine from Mt. Antero area. Aquamarine is the Colorado State Gemstone. I met up with a few Club Members to prospect an area that I had seen some Beryl that is showing signs of gem quality. I didn't find any crystals but I did find some mostly clear broken chunks and a large foggy chunk that has decent pink color. This mostly clear chunk is 3/8" thick. This is the one piece I found that showed some decent color. The hunt continues............. -------------------- |
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