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1. Bellingham

   ... by mostly anhedral feldspar and a lesser amount of quartz . The crystalline structure is generally coarse. Some predominantly quartz sections near aplitic textures. The quartz in these zones present ...

   Raven Mueller - 2015-09-03

2. Mountain White

   ... The most abundant non-carbonate accessory mineral is quartz , which occurs as individual minerals and as aggregates. Maximum quartz crystal size is .8 mm; most are significantly smaller. Platy minerals, ...

   Ed FitzGerald - 2015-09-05

3. Crystal Stratus

   ... common. Non-carbonate accessory minerals minimally include quartz , feldspar s ( albite twinning ), mica s ( phlogopite , ... most common accessory minerals are aggregates dominated by quartz, which reflect significant stress induced nucleation, producing sutured ...

   Ed FitzGerald - 2015-09-05

4. Montclair

   ... minerals and some larger porphyroblastic carbonate, quartz and feldspar grains. Maximum carbonate grain size is about 1.7 mm, ... common. Non-carbonate accessory minerals minimally include quartz, feldspar ( albite twinning ), mica s ( muscovite , phlogopite ...

   Ed FitzGerald - 2015-09-05

5. American Bouquet

   ... by mostly anhedral feldspar and a lesser amount of quartz . The crystalline structure is generally coarse but locally ranges to ... crystal dimension is 9 mm (feldspar) and minimum is .<1 mm (quartz). Quartz grains are notably smaller on average than feldspar grains. ...

   Raven Mueller - 2015-09-03

6. Dakota Mahogany Sunset

   ... by mostly anhedral feldspar and a lesser amount of quartz . The crystalline structure is generally coarse. Maximum crystal dimension is 13.5 mm (feldspar) and minimum is .1 mm (quartz). Quartz grains are notably smaller on average than feldspar grains. ...

   Raven Mueller - 2015-08-12

7. Royal Danby

   ... for definitive identification with modal size near .15 mm. Quartz is clearly present in extremely low quantities. There is also a ... sutured boundaries. Twin lamellae in carbonates are common. Quartz (possibly some feldspar ) is the most common non-carbonate accessory ...

   Raven Mueller - 2015-09-05

8. Greene County

   ... , including pegmatic crystals, and a lesser amount of quartz . The crystalline structure is very coarse and clearly phaneritic . ... slide dimension of 25 mm (feldspar); minimum is .1 mm (quartz). Quartz grains are notably smaller on average than feldspar grains. ...

   Raven Mueller - 2015-08-12

9. Vermont Verde Antique

   ... is of randomly oriented, interlocking, elongate grains of quartz and a lesser amount of carbonates, the other is nearly wholly serpentine . A few larger quartz grains ~.6 mm maximum dimension were identified based on interference ...

   Raven Mueller - 2015-09-05

10. Olympian White

    ... The most common non-carbonate accessory minerals are quartz and feldspar ( albite twinning ) that occur as individual crystals and small aggregates. Individual quartz grains have a maximum dimension of .4 mm, most are significantly ...

    Ed FitzGerald - 2015-09-05

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