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The halides are a group of minerals whose principle anions are halogens. Halogens are a special group of elements that usually have a charge of negative one when chemically combined. The halogens that are found commonly in nature include Fluorine, Chlorine, Iodine and Bromine. Halides tend to have rather simply ordered structures and therefore a high degree of symmetry. The most famous halide mineral, halite (NaCl) or rock salt has the highest symmetry 4/m bar 3 2/m. The colorful mineral fluorite (CaF) also has 4/m bar 3 2/m symmetry and its cubic crystals are very popular mineral specimens. There are only a few common halide minerals. The typical halide mineral is soft, can be transparent, is generally not very dense, has good cleavage, and often has bright colors.
MINERALS OF THE HALIDE CLASS:
- Atacamite (Copper Chloride Hydroxide)
Avogadrite (Potassium Cesium Boron Fluoride)Bararite (Ammonium Silicon Fluoride)Bischofite (Hydrated Magnesium Chloride)Bismoclite (Bismuth Chloride Oxide)- Boleite (Hydrated Lead Copper Silver Chloride Hydroxide)
- Calomel (Mercury Chloride)
Camermanite (Potassium Silicon Fluoride)- Carnallite (Hydrated Potasium Magnesium Chloride)
Chiolite (Sodium Aluminum Fluoride)- Chlorargyrite (Silver Chloride)
Chlorocalcite (Potassium Calcium Chloride)Chloromanganokalite (Potassium Manganese Chloride)Chloroxiphite (Lead Copper Chloride Oxide Hydroxide)Cotunnite (Lead chloride)- Cryolite (Sodium Aluminum Fluoride)
Cryolithionite (Lithium Sodium Aluminum Fluoride)Cryptohalite (Ammonium Silicon Fluoride)- Cumengeite (Hydrated Lead Copper Chloride Hydroxide)
- Diaboleite (Lead Copper Chloride Hydroxide)
Douglasite (Hydrated Potassium Iron Chloride)Embolite (Silver Chloride Bromide)Erythrosiderite (Hydrated Potassium Iron Chloride)Ferruccite (Sodium Boron Fluoride)- Fiedlerite (Lead Chloride Hydroxide)
Fluocerite (Cerium Lanthanum Fluoride)- Fluorite (Calcium Fluoride)
- Halite (Sodium Chloride)
Hieratite (Potassium Silicon Fluoride)Jarlite (Sodium Strontium Aluminum Fluoride)Kempite (Manganese Chloride Hydroxide)- Laurionite (Lead Chloride Hydroxide)
Lawrencite (Iron Chloride)Lorettoite (Lead Chloride Oxide)Malladrite (Sodium Silicon Fluoride)Marshite (Copper Iodide)Matlockite (Lead Fluoride Chloride)Mendipite (Lead Chloride Oxide)Miersite (silver copper Iodide)Nantokite (Copper Chloride)- Pachnolite (Hydrated Calcium Sodium Aluminum Fluoride)
- Paralaurionite (Lead Chloride Hydroxide)
Penfieldite (Lead Chloride Hydroxide)Prosopite (Calcium Aluminum Fluoride Hydroxide)- Pseudoboleite (Hydrated Lead Copper Chloride Hydroxide)
Ralstonite (Hydrated Sodium Magnesium Aluminum Fluoride Hydroxide)Rinneite (Potassium Sodium Iron Chloride)- Sal Ammoniac (Ammonium Chloride)
Scacchite (Manganese Chloride)Sellaite (Magnesium Fluoride)- Sylvite (Potassium Chloride)
Tachhydrite (Hydrated Calcium Magnesium Chloride)- Thomsenolite (Hydrated Calcium Sodium Aluminum Fluoride)
- Villiaumite (Sodium Fluoride)
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