Stone Info
Know your stones.
Fourteen families, from agates to tourmaline. Tap any family to see the stones we carry and what makes each one special.
Agates
Agates are a type of chalcedony characterized by the banding in the stone.
- luster= waxy, vitreous, dull
- Cleavage= none
- Fracture= conchoidal, subconchoidal
- system= trigonal
- hardness= 6.5-7
Aventurine
Aventurine is a form of quartzite, characterized by its translucency and the presence of platy mineral inclusions that give it a shimmering or glistening effect termed aventurescenc.
- luster= vitreus
- cleavage= none
- fracture= conchoidal
- system=trigonal
- hardness= 6.5-7
Beryls
Stones in the beryl family include aquamarine, morganite, and emerald. Beryl is a silicate material.
- Luster= Vitreous
- Cleavage = poor, in one direction
- Fracture = uconchoidal
- System = hexagonal
- Hardness = 7.5
Chalcedony
Chalcedony is a type of quartz.
- luster = waxy
- cleavage = none
- fracture = conchoidal, subconchoidal
- system = trigonal
- hardness= 6.5-7
Copper-based Stones
Copper-base stones include malachite, chrysocolla, and aurichalcite.
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Feldspar
Feldspars are an aluminum tectosilicates. They are distinguished by the presence of alumina and silica.
- luster = vitreus, subvitreous, pearly, dull, greasy
- cleavage = perfect, good
- fracture = conchoidal, subconchoidal, uneven, splintery, irregular
- system = trigonal
- hardness= 6-6.5
Fossils and Shells
Fossils include amber, septarian, and Florida fossilized coral. Shells include abalone and queen.
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Iron-based Stones
Iron-Based stones include hematite, boji stones, and prophecy stones.
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Jaspers
Jasper is an opaque chalcedony.
- luster = vitreouss
- cleavage = none
- fracture = conchoidal, subconchoidal
- system = trigonal
- hardness = 6.5-7
Manganese-Based Stones
Manganese-based stones include rodonite, suglite, and rhodochrosite.
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Moonstones
Moonstone is a feldspar characterized by is adularescence or flash.
- Luster = pearly, vitreous
- Cleavage = perfect
- fracture = conchoidal, uneven
- system= monoclinic
- hardness = 6-6.5
Other Stones
Other stones include Rhodochrosite, and Selenite
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Quartz
Quartz is a silicate mineral.
- Luster = vitreous
- cleavage= none
- fracture = conchoidal
- system= trigonal
- hardness = 7
Tourmaline
Tourmaline is a silicate characterized by pleochroism (the presence of differing colors or depths of color).
- Luster = vitreous
- Cleavage = poor
- Fracture = uneven, small conchoidal
- System = trigonal
- Hardness = 7