Gelang Perak 950 Lapis Lazuli / 950 Silver Bracelet Lapis Lazuli

Lapis lazuli /ˈlæpɪs ləˈzuːliː/ or/ˈlæʒuːlaɪ/ (sometimes abbreviated to lapis) is a deep blue semi-precious stone that has been prized since antiquity for its intense color.

Lapis lazuli from Afghanistan in its natural state
General
Category	Rock
Formula (repeating unit)	mixture of minerals with lazurite as the main constituent.
Identification
Color	Blue, mottled with white calcite and brassy pyrite
Crystal habit	Compact, massive
Crystal system	None, as lapis is a rock. Lazurite, the main constituent, frequently occurs as dodecahedra
Fracture	Uneven-Conchoidal
Mohs scalehardness	5–5.5
Luster	dull
Streak	light blue
Specific gravity	2.7–2.9
Refractive index	1.5
Other characteristics	The variations in composition cause a wide variation in the above values.