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Name Origin | The name is derived from Greek words for blunt and angle (amblus + gonia) due to the shape of crystals |
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Chemical Formula | (Li, Na)Al(PO4)(F, OH) |
Color | Colorless, white, grayish white, yellow, pinkish, greenish, and blueish |
Fracture | Irregular/Uneven,Sub-Conchoidal |
Hardness | 5.5-6 on the Mohs scale |
Crystal System | Triclinic; crystals equant to short prismatic, rough faces |
Cleavage | Perfect 1 direction {100}, good in 1 direction {011} |
Specific Gravity (SG) | 2.98-3.11 |
Lustre | Vitreous to greasy; pearly on cleavage |
Note: Amblygonite has different names for different chemical compositions and and optical properties. It is called Montebrasite when OH exceeds F in chemical composition. The name Montebrasite is derived from the French locality where is was found first (Montebras, Creuse, France). Also Amblygonite is known as natromontebrasite when Na exceeds Li in the chemical composition.
Amblygonite is very soft stone therefore it is rarely is used for jewellery.
Amblygonite is very soft stone therefore it is rarely is used for jewellery.
Continue reading about more color stones
Alexandrite
Bloodstone
Garnet
Actinolite
Zincite
Kyanite
Magnesite
Adamite
Algodonite
Andalusite
Gypsum
Aragonite
Diopside
Morganite
Jet
Azurite
Alexandrite
Bloodstone
Garnet
Actinolite
Zincite
Kyanite
Magnesite
Adamite
Algodonite
Andalusite
Gypsum
Aragonite
Diopside
Morganite
Jet
Azurite