| Price: |
5 USD
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| Min.Order Quantity: |
2 Ton/Tons |
| Supply Ability: |
400 Ton/Tons per Month |
| Port: |
tanjung priok |
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It is important that people
understand "fossil coral" is a natural stone formed from ancient corals.
It should not be mistaken for protected and endangered coral reef from
the modern oceans of today. Of the varieties of fossilized corals found
throughout the geologic record, exquisitely detailed specimens from
the mountains of Indonesia are most unique and beautiful. Corals have
been growing in the oceans around the world for almost 500 million
years. The corals thrived in warm shallow marine waters and over time
were buried in sediments as the land surface was juggled by crustal
plate movements or the oceans rose and fell. Temperature and pressure
from compaction during burial, resulted in those deposits, in time,
becoming rock and part of the present day geological record. Decorative
coraline limestone and marble are popular building materials and have
been used for centuries.For many years, ancient coral deposits have been
mined for their high quality calcium, potassium, magnesium and sodium
content which is used in health supplements. Fossil coral has also been
used in fertilizers. Fossil coral has even been used in filters to
remove impurities such as chlorine and formaldehyde from water. Ornate
coral pieces are also sought by fossil collectors or used in beads and
other jewelry. Silurian age (390 million year old) horn corals from
Utah (FIGURE 1) are prized for fine definition and brilliant red
color. Geodes formed by partial replacement or casts of coral heads by
low temperature chalcedonic or opaline silica are found in Florida.
Florida has even declared fossil coral to be the "Florida State Rock".
The shapes and colors of these specimens from the Tampa Bay region, in
north Florida and southern Georgia are unique. They are associated with
Tertiary rock formations of 20 to 25 million years in age.
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