MERCURY (14mm): Labradorite is found in igneous rocks, both plutonic and volcanic.
VENUS (18mm): Nephrite, a variety of the calcium, magnesium, and iron rich amphibole minerals tremolite or actinolite, mostly known for its green varieties.
EARTH (20mm): Sodalite, a sodium aluminum silicate chloride in the Sodalite group with an isometric crystal system. Its royal blue forms are the best known. As a mineral, it is a principal component of lapis lazuli.
MARS (16mm): Mahogany Obsidian, a volcanic glass which contains undulating parts of oxidized Hematite or Magnetite, which are usually colored mahogany brown or brick red within a black-colored base material.
JUPITER (28mm): Tiger's Eye, a metamorphic rock with a golden to red-brown colour lustre. It is formed when the Quartz takes over and dissolves the Crocodolite, leaving the Quartz in a finely fibrous and chatoyant form.
SATURN (26mm): Calcite, a carbonate mineral, one of the most common minerals occurs in a great variety of shapes and colors, and it constitutes a major portion of many of the earth's rocks.
URANUS (24mm): Amazonite, a mineral of limited occurrence. Formerly it was obtained almost exclusively in the Ilmensky Mountains. For many years, the source of Amazonite's color was a mystery.
NEPTUNE (22mm): Cat's Eye, a gemstone exhibits a rare optical trait known as chatoyancy. Chatoyancy is the unique ability to reflect light in a way that resembles the slit eye of a cat, hence the name 'cat's eye'.
PLUTO (14mm): Heliotrope, also known as bloodstone, is a variety of jasper or chalcedony (which is a cryptocrystalline mixture of quartz).
Natural gems have flaws and cracks, which are naturally formed and cannot be avoided
Exquisite Gift: Birthday or Holiday Gift for kids, astronomer, astronomy fans, teacher of physics, boyfriend, classmates or anyone who interested in the universe
1 x DeskSpace Handcrafted Solar System Desk Accessory