Natural AgateStained
Agate*Occo's*Geode Pairs on base*Friendship Pairs*
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| What Is A Geode? The mysterious earth-shaped geodes have long challenged geologist to explain how they are formed. Geodes are a variable phenomenon and, therefore, many theories exists to explain how they are created. The term geode is derived from the Greek word Geoides which means "earthlike." A geode is a sphere shaped rock which contains a hollow cavity lined with crystals. A geode which is completely filled with small compact crystal formations such as agate, jasper or chalcedony is called a nodule. The only difference between a geode and a nodule is that a geode has a hollow cavity, and a nodule is solid. How Geodes Are Created Geodes begin as bubbles in volcanic rock or as animal burrows, tree roots or mud balls in sedimentary rock. Over time, the outer shell of the spherical shape hardens, and water containing silica precipitation forms on the inside walls of the hollow cavity within the geode. The silica precipitation can contain any variety of dissolved minerals, the most common being quartz, but amethyst and calcite are also found. Over a period of thousands of years, layers of silica cool, forming crystals of different minerals within the cavity. Different types of silica cool at varying temperatures, thus creating layers of different types of mineral crystals. Each geode is unique in composition and can only be truly discovered when cracked open or cut with a rock saw. The size and formation of crystals and different shades of color within the crystals make each geode special. The rough exterior of the geode gives no indication of the secrets held within its core. The anticipation never fades for those who curiously collect buckets full of round geodes and eagerly expose the secrets of each individual sphere-shaped rock. The most prized contain rare amethyst crystals or black calcites. |
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Take advantage of the good selection we have right now!
This shipment was a good one!!
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 Geode Half Natural 10.6 oz. 3 3/4" X 1 5/8" So So So nice! GE166 $29.15 |
 Mini Occo Geodes! Natural *HOT* About 1.2 oz. About 1 1/2" Wide GE142 $2.00 each or 5 for $8.00 |
 Blue Geode Half 13 oz. 2 1/2" Wide GE151 $26.00 |
 Agate Geode Half Pink 6.8 oz. 2 3/4" X 1 7/8" GE194 $20.40 |
 Mini Occo Geodes! Dyed *AS HOT AS THE NATURAL* About .6 oz. About 1 - 1 1/2" Wide GE143 $2.00 each or 5 for $8.00 |
 Agate Geode Half Pink 7.2 oz. 2 3/4" X 1 3/4" What a great gift! GE180 $21.60 |
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 Agate Geode Half 5.2 oz. 3 3/4" X 1 5/8" Geodes are just awesome! GE159 $15.60 |
 Natural Geode Pair 9.8 oz. 2 3/4" X 1 1/2" This is a gorgeous friendship pair! Keep one and give one to a friend....:-) GE171 $29.40 |
 Natural Geode Half 2 pounds 1 oz. 3 1/2" Tall X 4 1/2" Wide Geodes bring compatible friendship and harmony in to a community. GE192 $89.00 |
 Agate Geode Half Purple 9.8 oz. 3 1/2" X 1 5/8" GE183 $29.40 |
 Geode Pair on base Natural 14.8 oz. 3 1/8" Tall X 5 3/8" Wide GE139 $37.00 |
 Agate Geode Half 7.2 oz. 3 3/4" X 1 3/4" GE196 $21.00 |
 Agate Geode Half 1 pound 2.4 oz. 3 3/4" X 2 5/8" GE187 $55.20 |
 Natural Geode Pair 15 oz. 2 5/8" X 2 1/4" GE173 $45.00 |
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