â¢ Apply primer to any knots or resin pockets on the trim. â¢ Let the primer dry, and then begin masking all adjacent surfaces with painter's tape. Be sure to seal the edges firmly. â¢ Wipe down the surface with denatured alcohol or a paint deglosser then prime the entire surface with a stain-blocking primer.
K-feldspar and plagioclase feldspar Feldspars have two cleavage planes that intersect at 90Â°. Fragments of pure feldspar crystals thus tend to form rectangular blocks with irregular ends. Feldspars have vitreous lusters and occur in opaque shades of white to gray to pink to very dark gray.Other rarer colors are also possible! The feldspars are divided into two main groups: Potassium feldspar (K-spar) and plagioclase (plag).-feldspar and plagioclase feldspar Feldspars have two cleavage planes that intersect at 90Â°. Fragments of pure feldspar crystals thus tend to form rectangular blocks with irregular ends. Feldspars have vitreous lusters and occur in opaque shades of white to gray to pink to very dark gray.
The shimmer, which is called schiller or adularescence, is caused by the intergrowth of two different types of feldspar, with different refractive indexes. Moonstones come in a variety of colors. The body color can range from colorless to gray, brown, yellow, green, or pink.The clarity ranges from transparent to translucent. The best moonstone has a blue sheen, perfect clarity, and a colorless body color.nother related feldspar variety is known as rainbow moonstone. In this variety of labradorite feldspar, the sheen is a variety of rainbow hues, from pink to yellow, to peach, purple, and blue. Sometimes one gem will show all these colors. Fine moonstone is quite rare and becoming rarer.