- Brand: Casa de plata
- Product Code: CSBR-50
- Availability: By Order
Turquoise is a sky-blue or green translucent to opaque basic aluminum phosphate that contains copper. ... The name "turquoise" comes from the French "turqueise", meaning "Turkish stone", because it was first transported to Europe via a Turkish nationTurquoise Gemstone Information
Carnelian belongs to the quartz group of minerals, the second most abundant mineral group on earth. Although all quartz gemstones share the same chemical composition of silicon dioxide, they are classified into two distinct branches based on crystal formation: Macrocrystalline quartz and cryptocrystalline quartz. Carnelian belongs to the cryptocrystalline branch of quartz. Cryptocrystalline, also referred to as chalcedony quartz, includes a variety of other gemstones including agate, onyx and jasper. Carnelian is classified by its distinct color and is defined as a red-orange to brownish-red variety of chalcedony quartz. Carnelian obtains its color through iron impurities that form within colorless quartz crystal.