What you will receive
One 5ml glass vial of the mineral Diorite mind from USA, Michigan.
•Diorite is a Intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene.
(An Intrusive rock is formed when magma crystallizes and solidifies underground to form intrusions)
•Diorite is ranked in at 6-7 on the Mohs scale of hardness.
•The chemical composition of diorite is intermediate, between that of mafic gabbro and felsic granite.
•Diorite is usually grey to dark-grey in colour, but it can also be black or bluish-grey, and frequently has a greenish cast.
• Diorite is a relatively rare rock
• Diorite may contain small amounts of quartz, microcline, and olivine. Zircon, apatite, titanite, magnetite, ilmenite, and sulfides occur as accessory minerals
•Diorite has a phaneritic, often speckled, texture of coarse grain size and is occasionally porphyritic.
•Diorite is an extremely hard rock, making it difficult to carve grand work with. It is so hard that ancient civilizations (such as Ancient Egypt) used diorite balls to work granite.
•The most famous diorite work extant is the Code of Hammurabi, inscribed upon a 2.23 m (7 ft 4 in) pillar of black diorite.
•It was especially popular with medieval Islamic builders. In later times, diorite was commonly used as cobblestone; today many diorite cobblestone streets can be found through the world
• It was also popular as a structural stone and was frequently used as pavement due to its durability. Diorite was used by both the Inca and Mayan civilizations, but mostly for fortress walls, weaponry, etc.

Shipping
• I offer fast free shipping to the USA;
International is additional