Damage to the surface can cause precious metal rings, including gold, to lose their attractiveness. Scratches, microscopic defects,
Aquarius from other zodiac signs, for example, from Gemini, Taurus, Capricorn, Pisces, Scorpio, Sagittarius, Virgo,
Property Description Formula Cu3(CO3)2(OH)2 or (CuCO3)2·Cu(OH)2 Hardness 3.5 - 4 Refractive index nα =
Now all progressive humanity is trying to feel unity with nature - fashion designers are fond of astrology,
Jewelry and products made from precious metals have always been an indicator of luxury. Since ancient times
COLLECTIBLE VARIETIES OF QUARTZ Collectors are interested not only in already processed stones in jewelry, but also
Welcome again, our diamond readers! Precious minerals and jewelry have always attracted, and will continue to
Category Oxides (minerals) Name in English. Rutile Formula TiO2 Group Oxide Group Color Red, Brown
Ear piercing is one of the most popular procedures in the world, which came to us as early as
Fossil coral (fossilized) Fossil corals, like modern representatives of the class, are mineral skeletons,
