Sulfates: Alotrihin (galotrihit)
Diagnostic Card.
Fe Al 2 (SO 4)4 * 22 (H 2 O)
Crystal system monoclinic
1.5 Hardness
density 1.9
Colour colorless, whitish, yellowish
Color white powder
Gloss glass
This mineral - part isomorphic with a finite number of member - magnesium pikkeringitom. It represents asbestiform masses, crusts, efflorescence, aggregates of needles, and very rarely - well-formed crystals with clear outlines. It is colorless, sometimes white, yellow and red.
Origin.
As Pickering, found among minerals formed during the oxidation of pyrite surface outcrops containing some aluminum species. Also formed as a product of volcanic fumaroles activity areas.
Place of Birth.
Alotrihin found in Pozzuoli near Naples, in the Palatinate, Saxony, Finland, Iceland, the United States and elsewhere.
Masri - a kind alotrihina containing manganese and cobalt - discovered in Egypt.
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- 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
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- 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
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