Hibiscus or Rose of China (Hibiscus rosa-sinensis) is a flowering plant that can bloom almost year-round. It has large, colorful flowers and is cultivated throughout the tropics and other warm climates.
Orthoclase Gemstone Information. About Orthoclase-History and Introduction. Orthoclase is a rare gemstone that belongs to the feldspar group, which also includes moonstone, amazonite, spectrolite and labradorite. Therefore, orthoclase is sometimes also called K-spar.Orthoclase gemstones are typically champagne yellow, golden yellow or greenish, though they can be other colours.rthoclase Gemstone Information. About Orthoclase-History and Introduction. Orthoclase is a rare gemstone that belongs to the feldspar group, which also includes moonstone, amazonite, spectrolite and labradorite. Therefore, orthoclase is sometimes also called K-spar.
Millimeter size to carat weight conversions for faceted oval cut Gemstones. This chart depicts optimum weights for oval cut gemstones.Actual weights may vary due many factors related to the best recovery of raw material as accessed by a skilled lapidary. In jewelry the primary goal is to calibrate the overall size for fit. See calibrated Gems to learn why.arquise cut gems, Octagon (emerald) cut chart, Oval cut chart, Pear shape gems, Round cut gems, Round diamond carat conversion chart. For more diamond information. Visit our Four C's diamond grading chart. Find more gemstone information. Visit our Gemstone index.