AAA grade Lapis balls, ranging from 100 Grams (+/-) 20 grams. 

This top grade lapis can be bought by wholesale lots of 5 kilograms. 

The price is $100 per kilogram. 

Please contact us with all of your questions. 

Orders will be created for the customers satisfaction.

Lapis lazuli

Lapis lazuli (/ˈlæpɪs ˈlæzjuːli/, /-ˈlæzjuːlaɪ/), or lapis for short, is a deep blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color. As early as the 7th millennium BC, lapis lazuli was mined in the Sar-i Sang mines, in Shortugai, and in other mines in Badakhshan province in northeast Afghanistan. Lapis was highly valued by the Indus Valley Civilisation (3300–1900 BC). Lapis beads have been found at Neolithic burials in Mehrgarh, the Caucasus, and even as far from Afghanistan as Mauritania. It was used in the funeral mask of Tutankhamun (1341–1323 BC). At the end of the Middle Ages, lapis lazuli began to be exported to Europe, where it was ground into powder and made into ultramarine, the finest and most expensive of all blue pigments. It was used by some of the most important artists of the Renaissance and Baroque, including Masaccio, Perugino, Titian and Vermeer, and was often reserved for the clothing of the central figures of their paintings, especially the Virgin Mary. Today, mines in northeast Afghanistan and Pakistan are still the major source of lapis lazuli. Important amounts are also produced from mines west of Lake Baikal in Russia, and in the Andes mountains in Chile. Smaller quantities are mined in Italy, Mongolia, the United States, and Canada.

Etymology

Lapis is the Latin word for "stone" and lazuli is the genitive form of the Medieval Latin lazulum, which is taken from the Arabic لاجورد lājaward, itself from the Persian لاجورد lājavard, which is the name of the stone in Persian and also of a place where lapis lazuli was mined. The English word azure, French azur, Italian azzurro, Polish lazur, Romanian azur and azuriu, Portuguese and Spanish azul, and Hungarian azúr all come from the name and color of lapis lazuli.

Science and Uses

A sample from the Sar-i Sang mine in Afghanistan, where lapis lazuli has been mined since the 7th Millennium BC. Natural ultramarine pigment made from ground lapis lazuli. The most expensive blue pigment during the Renaissance, often reserved for depicting the robes of Angels or the Virgin Mary

 Composition

The most important mineral component of lapis lazuli is lazurite[9] (25% to 40%), a feldspathoid silicate mineral with the formula (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2. Most lapis lazuli also contains calcite (white), sodalite (blue), and pyrite (metallic yellow). Some samples of lapis lazuli contain augite; diopside; enstatite; mica; hauynite; hornblende, nosean, and sulfur-rich löllingite geyerite. Lapis lazuli usually occurs in crystalline marble as a result of contact metamorphism.

Color

The intense blue color is due to the presence of the trisulfur (S3) radical anion in the crystal. Using an electronic excitation of one electron from the highest doubly filled molecular orbital (No. 24) into the lowest singly occupied orbital (No. 25) results in a very intense absorption line at λmax ~617 nm.

Sources

Lapis lazuli is found in limestone in the Kokcha River valley of Badakhshan province in northeastern Afghanistan, where the Sar-e-Sang mine deposits have been worked for more than 6,000 years. Afghanistan was the source of lapis for the ancient Egyptian and Mesopotamian civilizations, as well as the later Greeks and Romans. Ancient Egyptians obtained this material through trade from Afghanistan. During the height of the Indus Valley Civilisation about 2000 BC, the Harappan colony now known as Shortugai was established near the lapis mines.

According to the Sorbonne's mineralogist Pierre Bariand's leading work on the sources of lapis lazuli in modern times, and to references in Afghanistan's Blue Treasure: Lapis Lazuli (2011) by Lailee McNair Bakhtiar, the lapis lazuli is found in "caves" not traditionally considered "mines" and the stone lapis lazuli is from the primary source of the Hindu Kush Mountains in Afghanistan's Kochka River Valley and not in Pakistan. In addition to the Afghan deposits, lapis is also extracted in the Andes (near Ovalle, Chile); and to the west of Lake Baikal in Siberia, Russia, at the Tultui Lazurite deposit. It is mined in smaller amounts in Angola; Argentina; Burma; Pakistan; Canada; Italy, India; and in the United States in California and Colorado.

Uses and Substitutes

Lapis takes an excellent polish and can be made into jewelry, carvings, boxes, mosaics, ornaments, small statues, and vases. During the Renaissance, Lapis was ground and processed to make the pigment ultramarine for use in frescoes and oil painting. Its usage as a pigment in oil paint largely ended in the early 19th century when a chemically identical synthetic variety became available.

 

 

General

Category

Metamorphic rock

Formula

(repeating unit)

mixture of minerals with lazurite as the main constituent.

Crystal System

 

None, as lapis is a rock. Lazurite, the main constituent, frequently occurs as dodecahedra

                                                         Identification

Color

 

Blue, mottled with white calcite and brassy pyrite

Crystal Habit

 

Compact, massive

Fracture

 

Uneven-Conchoidal

Mohs scale hardness

 

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.