Jasper colors Jasper comes in all colors, mostly striped, spotted or flamed. A variety of trade names specify colors, appearance or composition. Agate jasper: Yellow, brown or green blended, grown together with agate Egyptian jasper: Strongly yellow and red Banded jasper: Layered structure with more or less wide bands Basanite: Fine-grained black Blood jasper: Bloodstone, dark green with flecks of red Hornstone: Very fine grained, gray, brown-red, more rarely green or black Scenic jasper: Brown marking caused by iron oxide, resembling a landscape. Oregon’s “Biggs Jasper” is now the most common source. “Bruneau Jasper”, from Bruneau Canyon, Idaho, is praised for its blue “skies”. Moukaite: Pink to light red, cloudy Plasma: Dark green, sometimes with white or yellow spots Silex: Yellow and brown-red spotted or striped