Please enable JavaScript.
Coggle requires JavaScript to display documents.
Other Translucent to Opaque Stones (Malachite, Azurite & …
Other Translucent
to Opaque Stones
Malachite,
Azurite &
Azurmalachite
Malachite
Source: Australia, Russia, the US & Zaire
Mohs Hardness Scale: 3.5 to 4
Vivid bluish green to green hue, silky to vitreous luster, and distinctive banding
Azurite
Trace element: Copper
Dark blue to violetish blue
Sources: the US, Namibia & France
Shares malachite’s softness & poor toughness.
Azurmalachite
A striking blend of azurite and malachite, Bands of oceanic blue and green give the gem’s surface the look of swirling surf
Source: the US, Namibia & France
Blue John Fulorite,
Sugilite & Charoite
Blue John Fulorite
The most popular for use in carvings
Major Source: England
Sugilite
Color: Rich red-purple to bluish purple hue
Trace element: Manganese
Ideal for cravings
Semitransparent to opaque with a waxy to vitreous luster
Charoite
Luscious violet color that forms the background for swirls, veins, and patches of black, gray, white, and brownish orange
Mohs Scale 5 to 6
Only Source: Russia
Rhodochrosite
& Rhodonite
Rhodochrosite
Color Range: Transparent pink to dark red
Trace Element: Manganese
Source: Peru, South Africa & the US state of Colorado
Rhodonite
Color Range: rosy hue, a warm orange-pink to brownish or purplish red with black veins or patches
Harder than Rhodochrosite, 5 -6 on Mohs Scale
Metallic Gems
Hematite
Opaque dark gray to black gem
Mohs scale: 5.5 - 6
Pyrite
“Fool's gold"
Marcasite is actually pyrite
Unakite & Sodalite
First granite aggregate consisting of
quartz, pink feldspar & green epidote
Blue Sodalite
Fashion into cabochon & beads
Semitransparent to opaque
Source: Canada, Brazil & Bamibia
Calcite Onyx Marble
Branded Marble
Frequently used for carving
Availability: Plentiful & common
Source: Mexico & the US