Science

Baddeleyite is a rare zirconium oxide mineral (ZrO2 or zirconia), occurring in a variety of monoclinic prismatic crystal forms. It is transparent to translucent, has…

Babingtonite is a calcium iron manganese inosilicate mineral with the formula Ca2(Fe, Mn) FeSi5O14(OH). It is a member of the Babingtonite group of minerals. It…

Babefphite is a rare phosphate mineral with the general formula BaBe(PO4)(F, OH). The name is given for its composition (Ba meaning barium, Be meaning beryllium,…

Aventurine is a form of quartz, along with carnelian, amethyst, and citrine; characterized by its translucency and the presence of platy mineral inclusions that give…

Illite is a non-expanding clay crystalline mineral. It is a group of mica-type clay minerals widely distributed in marine shales and related sediments. The chemical…

Glass capacitors are used where the ultimate performance is required for RF circuits. Glass dielectric capacitors offer very high levels of performance, although their cost…

Radian is a Constant Angle Radian is a unit of angle, the degree being the other unit. When a particle makes or completes one complete…

Auerlite is a rare North Carolina mineral variety, remarkably rich in thoria, named after Carl Auer von Welsbach, the inventor of the Welsbach incandescent gas…

A circle is a line forming a closed loop, every point on which is a fixed distance from a center point. Center is the point…

Asbestos is a naturally occurring mineral substance that can be pulled into a fluffy consistency. It is a set of six naturally occurring silicate minerals,…

Aquamarine is a blue or cyan variety of beryl. It occurs at most localities which yield ordinary beryl. The gem-gravel placer deposits of Sri Lanka…

Although anyolite is advertised as a variety of the mineral zoisite from Kenya and the Arusha Region of Tanzania, anyolite is actually a metamorphic rock…