You Searched For: Single+Crystals+and+Gemstones+Mineral+Specimens
258 results were found
Montmorillonite
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Montmorillonite (Na,Ca)0.3 (Al, Mg)2 Si4 O10 (OH)2 • nH2O Crystallography:
Monoclinic. Always in earthy masses; crystals not distinguishable. Physical Properties:
Cleavage: None apparent; usually unctuous and plastic. Hard...
Chalcopyrite
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Chalcopyrite Cu Fe S2 Crystallography:
Tetragonal; 42m. Usually massive; crystals commonly tetrahedral in aspect with the disphenoid.
Physical Properties: Cleavage: Indistinct. Fracture uneven; brittle. Hardness: 3.5-4.0. ...
Goethite
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Goethite Fe+3 O (OH) (See also Limonite) Crystallography:
Orthorhombic; 2/m2/m2/m. Acicular or rarely in distinct prismatic, vertically striated crystals. Also massive, reniform, stalactitic, or in radiating f...
Working with Insects
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Working with Insect Cultures
Blowflies and Fleshflies Calliphora sp., Sarcophaga bullata
In addition to blowflies and fleshflies, the order Diptera also includes mosquitoes, midges, and sawflies. All of these insects provide examples of complete m...
Nepheline
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Nepheline (Na,K) AlSiO4 Crystallography:
Hexagonal; 6. Rarely in small prismatic crystals with base; more commonly massive, compact, and in embedded grains.
Physical Properties: Cleavage: {1010} distinct. Frac...
Oligoclase
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Oligoclase (Na,Ca) Al (Al,Si) Si2O8 (An10-30) (Feldspar Group) (see also Plagioclase) Crystallography: Triclinic; 1. Crystals usually tabular parallel to {010}; twinning frequent as in albite. Commonly as irre...
Sphalerite
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Sphalerite (Zn,Fe) S Crystallography:
Isometric; 43m. Crystals usually tetrahedral or dodecahedral and often distorted and complex; rough, curved faces common. Usually in cleavable masses, coarse to fine granular.
Physical...
Gneiss
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Gneiss Type:
Metamorphic; regional. Texture/Appearance:
Foliated, often with distinct banding (segregation) of minerals; some preferred orientation in micas (platy) or hornblende (prismatic crystals). Medium t...
Ilmenite
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Ilmenite Fe+2 Ti O3 Crystallography:
Hexagonal-R; 3. Crystals usually thick tabular with prominent basal planes and small rhombohedral truncations. Commonly in thin plates, massive or compact; also in grains o...
WS Element of Month Nitrogen BOREAL Final
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All About Elements: Nitrogen
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Fun Facts About… Nitrogen 1. Nitrogen is the fourth most abundant
element in the universe and it makes up the majority of the earth’s atmosphere, at a staggering 78 per...
Boreal Butterfly Power Pack
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Painted Lady Butterfly
Power Pack
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There is no better way to study life cycles than by observing the complete metamorphosis of live butterflies. Provide you...
Green Tree Frogs
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Genus: Hyla sp. Family: Hylidae Order: Anura Class: Amphibia Phylum: Choradata Kingdom: Animalia
Green Tree Frog
Conditions for Customer Ownership We hold permits allowing us to transport these organisms. To access permit conditions, click here. N...
Grass Frogs-Tadpoles
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Grass Frogs Tadpoles and Frogs
Conditions for Customer Ownership (per USDA permits) We hold permits allowing us to transport these organisms. To access permit conditions, click here. Never purchase living specimens without having a disposition str...
Quartz(Chalcedony)
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Quartz (variety Chalcedony) Si O2 Crystallography:
Hexagonal -R; 32 (low-quartz). Hexagonal; 622 (high quartz). Cryptocrystalline; massive. Often, mammillary, botryoidal, or stalactitic.
Physical Properties: C...
WS Element of Month Sodium Boreal final
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All About Elements: Sodium
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Boreal’s All About Elements Series Building Real-World Connections to the Building Blocks of Chemistry
The periodic table of elements is an essential part of any chemistry ...
Medicinal Leeches
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Conditions for Customer Ownership We hold permits allowing us to transport these organisms. To access permit conditions, click here. Never purchase living specimens without having a disposition strategy in place.
• There are currently no USDA perm...
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