Mineral Specimens,Gemology,Gem Identification Tools,Facet Rough

PrettyRock.com	The Rock Lovers Shop! Subscribe to the Pretty Rock Mailing List! Like to talk Rocks? Join our forum!
We may be certain that whatever God has made prominent in his word, he intended to be conspicuous in our lives. - Charles Spurgeon - Click for More

Announcing the 2011 PrettyRock.com Faceting Competition! Click here for details.

Free Shipping over $150! Click for details	Gem and Mineral Library - Index -By Family- -By Properties-	Top Quality Facet Rough! Click for details

Click on a Mineral Family or a Specific Mineral Variety Above for More Information.

Picture of Mineral Rough on Detail Page

Picture of Faceted Gem on Detail Page

Mineral Family	Actinolite
Hardness	5-6
Refractive Index	1.614-1.641
Specific Gravity	2.95-3.1
Varieties Click a family name or variety for details.	None

Mineral Family	Amber
Hardness	2-2.5
Refractive Index	1.539-1.545
Specific Gravity	1.0-1.02
Varieties Click a family name or variety for details.	None

Mineral Family	Amblygonite
Hardness	5.5-6
Refractive Index	1.612-1.636
Specific Gravity	2.98-3.06
Varieties Click a family name or variety for details.	None

Mineral Family	Ammonite
Hardness	varies
Refractive Index	1.52-1.68
Specific Gravity	2.7
Varieties Click a family name or variety for details.	None

Mineral Family	Beryl
Hardness	7.5-8
Refractive Index	1.56/1.57 to 1.59/1.6
Specific Gravity	2.65-2.9
Varieties Click a family name or variety for details.	Aquamarine Emerald Heliodor Morganite Red Beryl

Mineral Family	Corundum
Hardness	9
Refractive Index	1.77/1.76
Specific Gravity	3.9-4.1
Varieties Click a family name or variety for details.	Padparadscha Ruby Sapphire

Mineral Family	Diamond
Hardness	10
Refractive Index	2.41
Specific Gravity	3.52
Varieties Click a family name or variety for details.	None

Mineral Family	Garnet
Hardness	6.5-7.5
Refractive Index	1.73-1.83
Specific Gravity	3.6-4.32
Varieties Click a family name or variety for details.	Almandine Grossular Hessonite (Grossular) Pyrope Rhodolite Spessartine Spessartite

Mineral Family	Topaz
Hardness	8
Refractive Index	1.64/1.63 to 1.62/1.61
Specific Gravity	3.52-3.56
Varieties Click a family name or variety for details.	Blue Topaz Golden Topaz Green Topaz Imperial Topaz Sherry Topaz

Click on a Mineral Family or a Specific Mineral Variety Above for More Information.

Facet Rough

Faceting Tools

Gemology Tools

Mineral Specimens

Rockin' Gifts

+ T-Shirts
+ Notecards
+ More Gifts

Shopping Cart