Dumortierite

Dumortierite is an aluminum boro-silicate mineral that may be red, brown blue, pale blue, violet blue, or greenish blue in coloration. Rarely, it is also violet or pink. It exhibits an orthorhombic crystal system and typically forms fibrous crystals that show pleochroism. It has a specific gravity of 3.3 to...

Dream Quartz

“Dream quartz” is the trade name that was given to quartz specimens containing epidote and/or actinolite inclusions. It exhibits a hardness of 7 on the Moh's scale. Within the quartz matrix, one might notice colors such as yellow, cream, pink, green and brown. This crystal is frequently tumbled and polished,...

Dolomite

Geologists use the word “dolomite” to refer to two different things, which can cause some confusion. It can refer to either the mineral or the sedimentary rock (aka “dolostone”). The rock is composed mainly of dolomite mineral, but it is also made up of other substances. Thus, the mineral is...

Dioptase

Dioptase is a copper cyclosilicate mineral that is intense blue-green or emerald-green in coloration. It has a vitreous to sub-adamantine lustre, a transparent to translucent diaphaneity, and falls at a 5 on the Moh's hardness scale, which happens to be the same hardness as tooth enamel. It has perfect cleavage...

Danburite

Translucent and commonly transparent, but sometimes with a yellow hue, danburite is a quartz-like stone prized for many of its physical, spiritual, and emotional properties. Originally discovered in 1939, danburite gets its name from Danbury, Connecticut, the place where it was first found.  A relatively hard and resilient stone, danburite...

Copper

Copper is the chemical element on the periodic table with the atomic number of 29 and the symbol of “Cu.” It has a very high electrical and thermal conductivity and is a ductile metal. It is soft, malleable, and reddish-orange in coloration when it is freshly exposed. It is used--...

Chrysoprase

Chrysoprase is a gemstone that actually happens to be a variety of chalcedony. Chrysoprase is set apart from chalcedony in that it contains trace amounts of nickel that help to give it its trademark green color. Chrysoprase is generally apple green but the color may vary a large amount. This...

Chrysanthemum Stone

Chrysanthemum stone is a Permain age stone that is found mainly in China (the Hunan region), where it is revered and represents the chinese imperial family as its official symbol. It has been referred to as “the stone of wealth and honor” by the chinese for centuries. It is also...

Charoite

Charoite, referred to locally as “lilac stone,” is a rare and expensive intense purple or translucent lavender colored silicate mineral named after the Chara River in Russia. This river passes a region of active sand dunes containing a mountain that holds the only charoite deposit ever found, which was discovered...

Bloodstone

“Bloodstone,” another name for the ancient mineral “heliotrope”  along with “Sun Stone” and “Christ's Stone,” is the traditional birth stone for the month of March and is a type of chalcedony. It is historically regarded for its healing aspects (both metaphysical and physical). Classic bloodstone is a deep green colored...

Azurite

Azurite is a well known and popular carbonate mineral that is produced when copper ore deposits endure weathering. It is also sometimes referred to as “chessylite,” and has a breathtaking deep, clear blue coloration. For centuries, it was used as a blue pigment. It is a popular collector's stone due...

Astrophyllite

Astrophyllite is a hydrous potassium iron titanium silicate mineral that is golden yellow or brown in coloration and it is extremely rare. It belongs to the group by the same name. It is classed as either  a “phyllosilicate,” a “inosilicate,” or sometimes as an intermediate between those two. It is...