Diamond is the hardest mineral on earth, and combined with its exceptional luster and brilliance, is the most prized of all gems. Pure and colorless diamond is the most popular but other varieties like yellow, brown, green, pink, blue and red, even black are also found. Diamond is chemically Carbon and the formula is C.
Because of the uniform arrangement of the carbon atoms, diamond crystals are well formed. Diamond forms at very high temperatures and pressures like 80 KM underground. These days Australia is the main producer.
Diamond Chemical Composition
Ghana, Sierra Leone, Zaire, Botswana, Namibia, USA, former USSR, and Brazil also produce Diamonds. Diamonds are graded for four “C”s for gem quality—Colour; Clarity; Cut; Carat i.e. weight.\
Diamond has the (Diamond Hardness) the hardness of 10.specific gravity 3.52, Refractive index 2.42 with a Cubic crystal structure.
Diamond is the precious stone for Venus. The semi-precious substitute for this is Tourmaline and Rock Crystal.
Tourmaline is basically complex Borosilicate gemologically. The formula for this is Na(Li, Al)3Al6(Bo3)Si6O18(OH)4. It comes in various colors and has different names as well, but the colorless tourmaline is called Anchorite and is used for Venus. This variety occurs in pegmatites of Madagascar and Pala(in California in the USA).
The hardness of Anchorite is 7.5, specific gravity 3.06, refractive index 1.62-1.64 with Trigonal structure.
Tourmaline helps in sleep disorders and is widely used for this. The stone decreases fear, worry, and stress and helps increase sleep. It also acts as a balancing force for eyes, brain, thymus, and thyroid.
Rock crystal is Quartz and is the most common mineral of the earth. It is Silicon Dioxide with a formula SiO2. The crystals are usually found as hexagonal prisms with pyramidal ends. It is found worldwide but the most important sources are Brazil, Swiss and French Alps, Madagascar, USA, former USSR.
The Diamond Hardness of this stone is 7, specific gravity 2.65, refractive index 1.54-1.55 with a Trigonal crystal structure.
Quartz helps to increase lactation, tissue regeneration, eyesight, and detoxification. It helps decrease anemia, jaundice, asthma, constipation, headache, fever, pain, ulcers, leukemia, bubonic plague, radiation protection, sore throat, gland swellings, vertigo, dizziness, burns, and blisters. It balances cell salts, circulation, amino acids, protein, stomach lining, immune system, pituitary gland, and intestines.