Phosphates: Mimetit
Diagnostic Card.
In the photo - mimetita samples. Below - campylite
Pb 5 (AsO 4)3 Cl
Crystal system hexagonal
Hardness of 3.5-4
Specific gravity 7.1
Cleavage is absent
fracture conchoidal
Colour yellow, brown
Color white powder
Diamond Gloss, fat
Represented as prisms, hexagonal in cross section; size is not too large. Often curved faces as in the keg. Curved crystals are a variety of Campiglio. Color pale yellow, light yellow-brown, yellow, orange and white.
Diagnostic features.
Mimetit soluble in hydrochloric acid and legkoplavok. The flames give off a strong smell of garlic.
Origin.
A typical secondary mineral deposits of lead. It often occurs in the same place pyromorphite.
Place of Birth.
Mimetit was first found in the English county of Cumberland. Other location of this mineral: Pribram in Bohemia, Yogangeorgenshtadt in Saxony, Broken Hill in Australia, Tsumeb in Namibia; Mapimi and Mina del Diablo near Durango in Mexico; Tintik in Utah (USA).
- Gatchell - "New Almadén snag" - arsenide and antimony sulfide (modern sulphosalts)
- Antimony - toxic metal (semi-metal) are widely used in industry, medicine and engineering
- Zirconium - a rare and non- metal and dangerous jewel in the oxide and salts
- Gold - yellow dangerous and toxic metal -date and accurate digital cable technology
- Sulphur - a golden-yellow toxic substance and a sign of volcanic activity
- Cadmium - a toxic uncirculated unknown wide range of people silvery metal
- Lead - a poisonous gray simulator silver metal and toxic metal snag
- Arsenic - poison classic medieval and modern poisoners and medicine in medicine
Toxic and hazardous radioactive rocks and minerals
** - Poisonous stones and minerals (obligatory check in chemical laboratory + clear indication of toxicity)
** - Radioactive rocks and minerals (obligatory check on a regular dosimeter + ban on the open sale of radioactivity in the event of more than 24 mR / hour + additional measures to protect the population)
Catalog minerals and gems in groups of the world
** - Poisonous stones and minerals
** - Radioactive rocks and minerals
Comments
Commenting, keep in mind that the content and the tone of your messages can hurt the feelings of real people, show respect and tolerance to his interlocutors, even if you do not share their opinion, your behavior in terms of freedom of speech and anonymity offered by the Internet, is changing not only virtual, but real world. All comments are hidden from the index, spam control.