Gemstone Family Tree


Welcome to the family tree of gemstones. You may wonder how do these gemstones classify within these 16 different families? It is actually based on their chemical composition. Chemical composition is comprised of these 3 characteristics: specific gravity Mohs hardness and index of refraction. Not the most exciting explanation since our passion for gemstones generally comes from their capability to refract light and a color which is pleasing to our own individual taste. Please note the provided color swatches could vary.


 

 

 
 

Beryl

Mohs 7.5 to 8.0

Aquamarine Aquamarine
Helidor Heliodor
Emerald Emerald
Morganite Morganite
Goshenite Goshenite
Red Beryl Red Beryl
 
 

Chrysoberyl

Mohs 8.5

Alexandrite Alexandrite
Cat's Eye Cat's Eye
Chrysoberyl Chrysoberyl
 
 

Corundum

Mohs 9

Ruby Ruby
Sapphire Sapphire
 
 
 

Diamond

Mohs 10

 
 
 
 
 

Feldspar

Mohs 6.0 to 6.5

Amazonite Amazonite
Moonstone Moonstone
Sunstone Sunstone
Feldspar Feldspar
Orthoclase Orthoclase
Labradorite Labradorite
Peristerite Peristerite
 
 

Garnet

Mohs 6.5 to 7.5

Demantoid Demantoid
Rhodolite Rhodolite
Grossular Grossular
Spessartine Spessartine
Hessonite Hessonite Tsavirute
Color-Change Color-Change
 
 

Jade

Mohs 6.0

Jade Jade
Jadeite Jadeite
Nephrite Nephrite
 
 

Lapis Lazuli

Mohs 5.0 to 5.5

 
 
 
 
 

Opal

Mohs 5.5 to 6.5

Black Opal Black Opal
White Opal White Opal
Fire Opal Fire Opal
Opal Opal
 
 

Peridot

Mohs 7

 
 
 
 
 

Quartz

Mohs 7

Agate Agate
Bloodstone Bloodstone
Chalcedony Chalcedony
Jasper Jasper
Smoky Smoky
Amethyst Amethyst
Citrine Citrine
Carnelian Carnelian
Prasiolite Prasiolite
Ametrine Ametrine
Chalcedony Chalcedony
Green Green
Rose Rose
 
 

spinel

Mohs 8.0

Almandine Almandine
Ghanospinel Ghanospinel
Spinel Spinel
Balas Ruby Balas Ruby
Rubicelle Rubicelle
Chlorspinel Chlorspinel
Sapphire Sapphire
 
 

Topaz

Mohs 8.0

 
 
 
 
 

Tourmaline

Mohs 7.0 to 7.5

Anchorite Anchorite
Indicolite Indicolite
Tourmaline Tourmaline
Brazilian Emerald
Brazilian Emerald
Rubellite Rubellite
Verdilite Verdilite
Dravite Dravite
Siberite Siberite
 
 

turquoise

Mohs 5.0 to 6.0

 
 
 
 
 
 

Zircon

Mohs 7.5

Hyacinth Hyacinth
Zircon Zircon
Jargon Jargon
Mutra DiamondMatura Diamond