CHARACTERISTICS | |
Weight | 555 gr |
Size | 75x35x160 mm |
Reference | 250816344 |
Mineral | rock Obsidian |
Category | Decoration stones |
Group | Free forms |
Country |
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Formula SiO2] OBSIDIAN | |||
O | Oxygen | Other no metal | 53.26% |
Si | Silicon | Metalloids | 46.74% |
100% | |||
Obsidian is classified as a volcanic glass due to its rapid formation by cooling lava. Unlike traditional mineral crystals, obsidian lacks a defined crystalline structure, which gives it its unique glassy appearance. This volcanic rock is primarily composed of silicon dioxide, an essential component of igneous rocks.
Obsidian typically forms in felsic lava flows, where rapid cooling prevents mineral crystallization. This unique process results in a smooth, homogeneous texture distinct from other volcanic rocks. Obsidian formation sites are often located in active or ancient volcanic regions, such as Iceland, Japan, and parts of the United States, particularly Oregon and New Mexico.
In the field of mineralogy, obsidian is prized not only for its aesthetic beauty, but also for its distinct physical and chemical properties. Its density typically ranges from 2.3 to 2.6 g/cm³, and it has a hardness of 5 to 5.5 on the Mohs scale, making it relatively resistant to wear.
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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.