Biotite Gneiss Specimen Pack Size:Pack of 6 Labeled on half of the

Labeled on half of the discs with stamped element names

75 x 1 inches each

Needle valve and flame stabilizer add precision control to this nickel-plated micro Bunsen burner running on LPG or butane for small-flame work

Seventeen-material solids kit with two pieces of each substance in mixed sizes

this low-resistance shunt diverts a precise fraction of circuit current around the meter so small signals stay within full-scale

Biotite Gneiss Specimen Pack Size:Pack of 6 Labeled on half of theAlternating light and dark mineral bands demonstrate the classic gneissic texture, with biotite producing the dark foliation during regional metamorphism.