You Searched For: Texture Analysers

+ward’ssciencewardsci.com800-962-2660 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 material...

+ward’ssciencewardsci.com800-962-2660 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 indist...

+ward’ssciencewardsci.com800-962-2660 Skarn Type: Metamorphic; contact. Texture/Appearance: Most often coarse-grained and granoblastic with no foliation. Massive structure with zones of mineral concentration. Color: Varies with mineralogy but usua...

Click to edit Master title style Microbes and Health: “What causes Yogurtness”? Stan Hitomi Coordinator – Math & Science San Ramon Valley Unified School District Danville CA Kirk Brown Lead Instructor Edward Teller Education Center Science Chair ...

wardsci.com 800-962-2660 Serpentinite Type: Metamorphic; regional. Texture/Appearance: Fine to coarse-grained lamellar or mesh-like; massive with frequent zonations and veins. Color: Dark green to black. Mineralogy/Chemistry: Ultramafic; composed ...

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 and...

wardsci.com 800-962-2660 Scoria Type: Igneous; extrusive (volcanic). Texture/Appearance: Fine-grained to glassy; highly vesicular (>50%). Usually heavier and more crystalline than pumice. Color: Dark reddish-brown to black. Mineralogy/Chemistry: B...

+ward’ssciencewardsci.com800-962-2660 Anorthosite Type: Igneous; intrusive. Texture/Appearance: Medium to coarse-grained equigranular with elongated tabular plagioclase. Color: Dark gray to bluish-gray sometimes lighter shades. Mineralogy/Chemistr...

wardsci.com 800-962-2660 Dolostone Type: Sedimentary chemical. Texture/Appearance: Fine to coarsely crystalline grain size; sugary (saccharoidal). May contain various fossil relicts molds and casts. Stratification absent or irregular. Color: Light...

+ward’ssciencewardsci.com800-962-2660 Phyllite Type: Metamorphic regional. Texture/Appearance: Very fine-grained showing strong schistosity; commonly displaying crenulated (wavy) cleavage. Generally coarser than slate. Cleavage surface exhibits a ...

wardsci.com 800-962-2660 Slate Type: Metamorphic; regional. Texture/Appearance: Fine-grained; lacks mineral segregation banding displays rock cleavage in one direction. Surface may appear somewhat smooth and shiny. Color: Various including dark gr...

wardsci.com 800-962-2660 Peridotite Type: Igneous; intrusive. Texture/Appearance: Medium to coarse-grained; massive granular sometimes porphyritic. Color: Medium gray to greenish-gray. Mineralogy/Chemistry: Ultramafic with mafic minerals greater t...

+ward’ssciencewardsci.com800-962-2660 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 gra...

+ward’ssciencewardsci.com800-962-2660 Amphibolite Type: Metamorphic; regional. Texture/Appearance: Massive to foliated; gneissic to schistose. Color: Black to dark-green often speckled with white. Mineralogy/Chemistry: Mafic; composed primarily of...

+ward’ssciencewardsci.com800-962-2660 Obsidian Type: Igneous; extrusive Texture/Appearance: Glassy with rare microphenocrysts or spherulites; conchoidal fracture. Color: Shiny black to brown. Mineralogy/Chemistry: A natural glass or rhyolitic (fel...

ward’s sciencewardsci.com800-962-2660 Syenite Type: Igneous; intrusive. Texture/Appearance: Massive; medium to coarse-grained often changing to pegmatitic. Appears speckled with dark patches sometimes porphyritic; may show flowage. Color: Pale pin...