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29 results were found
Eastern Newts
/www.boreal.com/images/Eastern_Newts.pdf
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. A USDA permit is needed to send ea...
Diorite
/www.boreal.com/images/Diorite.pdf
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Diorite Type:
Igneous; intrusive. Texture/Appearance:
Massive, generally medium-to-coarse grained; subhedral, equigranular to por- phyritic. Differences in color and grain size are common with orbicular struct...
Gneiss
/www.boreal.com/images/Gneiss.pdf
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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...
Granite
/www.boreal.com/images/Granite.pdf
wardsci.com 800-962-2660
Granite Type:
Igneous, intrusive. Texture/Appearance:
Massive, medium to coarse-grained; holocrystalline, sometimes porphyritic. Color:
White, light gray, pink, or red. Mineralogy/Chemistry:
Felsic; composed primarily of q...
Siltstone
/www.boreal.com/images/Siltstone.pdf
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Siltstone Type:
Sedimentary; clastic. Texture/Appearance:
Silt-sized (<1/16 mm) to very fine sand-sized particles; massive, not laminated (no bedding planes) may exhibit significant clay or sand.
Color: Tan, g...
Hornfels
/www.boreal.com/images/Hornfels.pdf
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Hornfels Type:
Metamorphic, regional. Texture/Appearance:
Homogeneous; dense, fine-grained. Granoblastic; may have porphyroblasts or any of the minerals present.
Color: Varies; light to dark. May be pink, brow...
Greenstone
/www.boreal.com/images/Greenstone.pdf
ward’s sciencewardsci.com800-962-2660
Greenstone Type:
Metamorphic; regional. Texture/Appearance:
Fine-grained, massive or compact; generally non-schistose. Color:
Dark, green. Mineralogy/Chemistry:
Mainly composed of chlorite, actinolite, epidote...
Arkose
/www.boreal.com/images/Arkose.pdf
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Arkose Type:
Sedimentary; clastic. Texture/Appearance:
Usually coarse-grained, sometimes with pebbles. Angular to subangular, poorly to moderately well-sorted sand grains. No Fossils.
Color: Gray, pink or redd...
Limestone
/www.boreal.com/images/Limestone.pdf
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Limestone Type:
Sedimentary; chemical or clastic. Texture/Appearance:
Fine to coarsely crystalline; varieties may be dense, compact and graded to brecciated, styliolitic, or oolitic. Stratification usually ind...
Rhyolite
/www.boreal.com/images/Rhyolite.pdf
wardsci.com 800-962-2660
Rhyolite Type:
Igneous; extrusive. Texture/Appearance:
Fine-grained, cryptocrystalline (and glassy) to microcrystalline; often porphyritic. May show flow banding.
Color: Light colored; pink, gray, and purple.
Mineralogy/Ch...
Tuff
/www.boreal.com/images/Tuff.pdf
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Tuff Type:
Igneous; extrusive (pyroclastic). Texture/Appearance:
Clastic texture with angular rock and mineral fragments and lapilli mixed with fine-grained volcanic ash, partly cemented by sedimentary materia...
Graywacke
/www.boreal.com/images/Graywacke.pdf
wardsci.com 800-962-2660
Graywacke Type:
Sedimentary; clastic. Texture/Appearance:
Generally coarse-grained with angular to sub-angular, poorly sorted grains in a clayey matrix. May show graded bedding; fossils are rare.
Color: Gray to greenish-gr...
Pegmatitie
/www.boreal.com/images/Pegmatitie.pdf
wardsci.com 800-962-2660
Pegmatite Type:
Igneous; intrusive. Texture/Appearance:
Very coarse-grained, marked by intergrowth of large (up to 1 cm) crystals. In some instances, individual crystals may grow up to several feet.
Color: Varies; mostly l...
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