Zamak is a zinc alloy containing some aluminum (3.9-4.5%) and copper (0.02-0.05%).
An abundant, lustrous, bluish-white, metallic element of the magnesium-cadmium
group. Zinc is brittle at room temperature but malleable when heated.
It is used to form a wide variety of alloys including Brass, Britannia,
Bronze, various solders, and Nickel Silver. Because zinc is not easily
oxidized in moist air it is used for sheeting, coating galvanized iron
(and other metals), for electric fuses, anodes, meter cases, in roofing,
gutters, and is also largely consumed in electric batteries.
Zircons are very common minerals which occur naturally in clear, yellow,
brown, orange and reddish-brown colors. Zircon is frequently heat treated
to enhance or alter their color. Mohs scale: 6.5-7.5. Many people confuse
the natural gem zircon with cubic zirconia which is a man-made, synthetic
used as an inexpensive alternative to a diamond. Note that these are completely
Zoisite (Calcium-aluminum silicate) is a gray-green mineral that occurs
in cracks of igneous rock. Zoisite has three known forms: anyolite (a
green matrix containing rubies), tanzanite (transparent, blue-violet containing
strontium), and thulite (opaque pink crystals containing manganese). Zoisite
was named for the Slovenian mineral collector Baron Sigismund Zois von
Edelstein, who financed the expedition that discovered Zoisite.