From wissahickon creek chestnut hill philadelphia philadelphia county pennsylvania almandine garnet and muscovite from delaware county pennsylvania almandine spessartine garnet from bishop s mill delaware county pennsylvania. Almandine also called almandite. The name garnet comes from the medieval latin word granatum which is an adjective meaning dark red. Garnet gemstones most commonly occur with reddish color which explains their historical name. The specimens range from a milky white to the more famous water clear crystals which most envision when they think of quartz.
It is thought that granatum was derived from the word pomegranate due to the color of pomegranate seed coats as well as the overall shape. Rockhounding in pennsylvania is loads of fun. Permission must be granted from the owner. Rutile garnet kyanite magnetite and gold have been panned from a small stream located on gross road. Garnet is one of the most versatile gemstones available and are found in multiple countries.
Almandine and pyrope are the most widely used garnet gemstones. There are three varieties of garnets that have been found in pennsylvania. Almandine is an iron alumina garnet with a reddish orange to red deep red or near purple color in what is usually a deep or dark tone. When cut almandine is also known as carbuncle. The varieties include almandine garnet andradite garnet and spessartine garnet.
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Tsavorite is a calcium aluminium silicate and its beautiful green color is caused by vanadium and sometimes chromium. Most people think of garnet as being red but it actually comes in many colors. Pyrope is especially noted for its transparency and frequent lack of flaw s or inclusion s. Only the less common transparent dark red forms of almandine are used as gemstones. The sites where these garnets have been found were once active mines.74 found in 1974 as part of a road expansion azurite and malachite coatings on the hornfels have been a favorite to many collectors. Though almandine is the most common garnet it is usually opaque and not fit for gemstone use. Tsavorite is one of the rarest garnet types the other notable rare garnets being color change garnet and malaia garnet. It is considered a gemstone. Garnets ˈ ɡ ɑːr n ɪ t are a group of silicate minerals that have been used since the bronze age as gemstones and abrasives.
Rossville road cut about 1 mile north of rossville which is about 15 miles north of york on rt. Quartz crystals in pennsylvania. All species of garnets possess similar physical properties and crystal forms but differ in chemical composition the different species are pyrope almandine spessartine grossular varieties of which are hessonite or cinnamon stone and tsavorite uvarovite. Rossville road cut about 1 mile north of rossville which is about 15 miles north of york on rt. 74 found in 1974 as part of a road expansion azurite and malachite coatings on the hornfels have been a favorite to many collectors.
All species of garnets possess similar physical properties and crystal forms but differ in chemical composition the different species are pyrope almandine spessartine grossular varieties of which are hessonite or cinnamon stone and tsavorite uvarovite. Tsavorite is a calcium aluminium silicate and its beautiful green color is caused by vanadium and sometimes chromium. Almandine and pyrope are the most widely used garnet gemstones. It is thought that granatum was derived from the word pomegranate due to the color of pomegranate seed coats as well as the overall shape. From wissahickon creek chestnut hill philadelphia philadelphia county pennsylvania almandine garnet and muscovite from delaware county pennsylvania almandine spessartine garnet from bishop s mill delaware county pennsylvania.
