89^€

Collectible lapis lazuli

Weight 500 gr

CHARACTERISTICS
Weight	500 gr
Size	60x65x50 mm
Reference	240112531
Mineral	rock Lapis-lazuli
Category	Decoration stones
Group	Free forms
Country	Afghanistan

Contractual photos showing the object you will receive when ordering. the photos were taken in order to obtain the most faithful possible rendering of the object.
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Formula (Na,Ca)₈(AlSiO₄)₆(SO₄,S,Cl,OH)₂] LAPIS-LAZULI
O	Oxygen	Other no metal	45%
Si	Silicon	Metalloids	10%
C	Carbon	Other no metal	10%
Na	Sodium	Alkali metal	4%
Ca	Calcium	Alkaline earth metal	4%
Al	Aluminum	Poor metal	4%
S	Sulfur	Other no metal	2%
Fe	Iron	Transition metal	2%
			81%
Lapis lazuli is a metamorphic rock. Its characteristic blue color, often dotted with golden veins of pyrite, has made it a highly prized stone since ancient times. The intense blue color of lapis lazuli is mainly due to the presence of lazurite, a mineral from the feldspathoid group. This rock also contains other minerals such as calcite and pyrite. The formation of lapis lazuli is related to contact metamorphic processes. It usually forms in crystalline marbles, when limestone rocks are subjected to high temperatures and pressures in the presence of sodium-rich fluids. These conditions favor the formation of lazurite and other minerals constituting lapis lazuli. From a mineralogical point of view, lapis lazuli has a variable composition. The proportion of lazurite, calcite and pyrite can fluctuate from one sample to another, which explains the diversity of colors and patterns observed in this stone. Its physical and chemical properties, combined with its natural beauty, make it a precious stone used for centuries in jewelry and as a pigment for the arts.

Return and delivery

Shipping time
Your orders are usually shipped the day of the order and at the latest after 2 working days.

Delivery delay
Once the package is supported by the postal service, delivery times are those announced by the Post (letter followed or Colissimo followed). Parcel shipping from France.

Returns and Refund
Our refund and return policy lasts 14 days. You can read the details on the "return and delivery" page.

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