Jade or hard of aluminum silicate and sodium consists (NaAlSi2O6) or so-called Paljadat (Jadeite) and calcium silicate, magnesium and iron (Ca2 (Mg, Fe) 5Si8O22 (OH) 2) or the so-called Balinveraat (Nephrite). Often the color is green but it may take other colors, depending on the type of impurities which may reach the degree of hardness seven degrees.
Amethyst is a colored quartz types which has a purple color due to the presence of iron atoms and some other elements.
