Browse Items (264 total)

Compare with porosity.

See granular.

Compare with macrocryst and porphyroblast.

Formula Na[AlSi3O8] – Ca[Al2Si2O8] Structure Framework silicate Crystal System Crystal system: triclinic (+) (-) Physical Properties Colour in hand specimen: white Cleavage: two at 90° Hardness: 6-6.5 Optical Properties Colour in…

Have a look at the alkali basalt (L100) in the 1A Reference Series.

Have a look at the gabbro (L141) in the 1A Reference Series.

Have a look at the quartzites (L520, L521) in the 1A Reference Series.

Compare with permeability.