A species of Lazulite Group, Also known as Berkeyite, Azurite (of Jameson), Blue Feldspar, Gersbyite, Mollite, Tetragophosphite, Voraulite (of Delamétherie)
Lazulite is a deep blue mineral that is often confused for the more famous (and also very blue) lapis lazuli. This rare stone, unlike the more amorphous lapis lazuli, has cleavage planes (essentially, angular faces along which the crystal may split). Lazulite is occasionally used to make jewelry – although only somewhat translucent in its native form, it can become relatively transparent when correctly cut.
Hardness:
5.5 - 6
Density:
3.144 g/cm³
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Properties
Values
Characteristics
Cultural
Common Questions
General Info About Lazulite
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Physical Properties of Lazulite
Luster
Greasy, Vitreous, Resinous, Sub-vitreous
Diaphaneity
Transparent to translucent
Colors
Blue, sky-blue, bluish white
Magnetism
Non-magnetic
Tenacity
Brittle
Cleavage
Indistinct
Fracture
Uneven, Splintery
Streak
White
Crystal System
Monoclinic
Hardness
5.5 - 6 , Hard
Density
3.144 g/cm³, Normal Weight
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Chemical Properties of Lazulite
Chemical Classification
Phosphates
Formula
MgAl2(PO4)2(OH)2
Elements listed
Al, H, Mg, O, P
Common Impurities
Fe, Mn
Optical Properties of Lazulite
Refractive Index
1.604-1.646
Birefringence
0.031-0.036
Pleochroism
Transparent stones - Strong: colorless, light blue, dark violet blue
Dispersion
0.014
Optical Character
Biaxial negative
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Rarity
Rare
Characteristics of Lazulite
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Characteristics of Lazulite
Lazulite crystallizes in the monoclinic system. Crystal habits include steep bipyramidal or wedge-shaped crystals. Lazulite has a Mohs hardness of 5.5 to 6 and a specific gravity of 3.0 to 3.1. It is infusible and insoluble.
Formation of Lazulite
It forms by high grade metamorphism of high silica quartz rich rocks and in pegmatites. It occurs in association with quartz, andalusite, rutile, kyanite, corundum, muscovite, pyrophyllite, dumortierite, wagnerite, svanbergite and berlinite in metamorphic terrains; and with albite, quartz, muscovite, tourmaline and beryl in pegmatites. It may be confused with lazurite, lapis lazuli or azurite. It is found in Salzburg, Austria; Zermatt, Switzerland; Minas Gerais, Brazil; Lincoln County, Georgia; Inyo County, California; the Yukon in Canada; and elsewhere. It was first described in 1795 for deposits in Styria, Austria. Its name comes from the German lazurstein, for blue stone or from the Arabic for heaven.
Cultural Significance of Lazulite
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Uses of Lazulite
Lazulite is a popular gemstone due to its brilliant blue color, but has few uses outside of that. Due to its vivid appearance, it is a popular component of many mineral collections. When polished in cabochons or beads, it can be enjoyed a similar substitute for the popular lapis lazuli, and rarely specimens are found of sufficient quality to be cut into a breathtaking faceted stone.
Distribution of Lazulite
It is found in Salzburg, Austria; Zermatt, Switzerland; Minas Gerais, Brazil; Lincoln County, Georgia; Inyo County, California; the Yukon in Canada; and elsewhere.
Etymology of Lazulite
It was first described in 1795 for deposits in Styria, Austria. Its name comes from the German lazurstein, for blue stone or from the Arabic for heaven.
Healing Properties of Lazulite
Lazulite is a stone that is said to bridge the spiritual and physical worlds. It is believed to help one interpret their dreams and help them on their path to greater understanding of their life's purpose. Carrying the stone with you or wearing it is believed to offer serenity when faced with daily challenges and negativity, including physical pains and illnesses.
Chakras
Throat, Third Eye
Common Questions People Also Ask
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