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Product Type: Opal 
Approx Weight (per lot):  0.05ct
Size:  1.6-1.7mm
Shape:  Round Cabochon
Color: White with Rainbow color
Clarity: Transparent
Origin: Australia

Calcite is found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" - one that is found everywhere. Calcite is the principal constituent of limestone and marble. 

Name: Calcite Point crystal
Dimensions: 160x75 mm / 6.3x3 inches
Weight: 1.5 KG / 3.3 Lbs
Origin: China

Orpiment is known for its strikingly bright yellow color, though it can also be bright orange or lustrous brown. The name Orpiment is derived from the Latin Auripigmentum, meaning gold pigment, in reference to its color and historical use as a golden-yellow pigment. Orpiment is often associated with bright red Realgar, and may form in strikingly colored and unique mineral combinations.

Orpiment is a photosensitive mineral and will eventually dull and develop a white powdery film upon prolonged exposure to light. Due to the instability of Orpiment, specimens should be stored enclosed and covered to prevent their exposure to light. Occasional exposure to look at a specimen will not cause damage; only prolonged or repeated exposure will cause deterioration.

Orpiment contains a significant amount of poisonous arsenic, and is itself somewhat toxic. Washing hands is recommended after handling Orpiment specimens, especially if powdery.

This is a quality specimen that would be a beautiful addition to any new or existing rock collection.

Name:  Orpiment and Realgar
Specimen Size:  Miniature-Sized
Dimensions:  52x38x27 mm / 2.0x1.5x1.1 inches
Weight: 56.96 grams / 2.0 oz 
Origin:   Mined in Betze Post Pit, Carlin Trend, Ucaura Mountains, Elko Co., Nevada USA