Insouciant Studios Gris Necklace Natural Pearl Spinel and Iolite

Insouciant Studios "Gris" Necklace is a muted piece with a polished, Art Deco vibe. Lustrous natural gray pearls are hand beaded on sterling silver and accented with transparent purple Iolite and black spinel. The main stone is a lovely faceted natural blue-gray chalcedony. Sterling silver construction and safety clasp finish this quality piece. The pearls, stones, and subtle color palette make this a very special piece that will shine at evening events.

Measurements
The central stone measures ~ 3/4 inch. (1.9 cm)
The necklace has a 9.5 inch (24 cm) drop from clasp to pendant, and is 19 1/2 inches (49.5 cm) long from end to end.

Materials

Spinel (MgAl2O4) is a magnesium aluminum oxide mineral, with a hardness of 8 on the Mohs scale. It occurs in a range of colors, from colorless to black, with red, lavender, blue, white and others possible. It has a long history of use as a gemstone. In nature, it is formed by high-temperature metamorphism of carbonates or schists, and is often associated with calcite, dolomite, garnet, corundum, diopside, olivine, and other dense minerals. [Mineralogy, Perkins]

Quartz (SiO2, Silicon Dioxide) is the second most abundant mineral of the Earth's crust. Quartz has a hardness of 7 on the Mohs scale, an occurs in a variety of colors, from colorless to black. Some of the colors have their own gem names:
Purple: Amethyst
Yellow: Citrine
Yellow and Purple: Ametrine
Green: Prasiolite
White: Milk, snow
Brown/gray/black: Smoke
Pink: Rose
Orange/ Red: Carnelian
[Mineralogy, Perkins]