A few weeks ago I went on vacation to one of the cool cities in Aceh. In that vacation, I took the time to get into one of the famous caves there, very interesting. In this cave I see various interesting formations from Stalagmites, also with different colors.
The most common stalactites are speleothems, which occur in limestone caves. They form through deposition of calcium carbonate and other minerals, which is precipitated from mineralized water solutions. Limestone is the chief form of calcium carbonate rock which is dissolved by water that contains carbon dioxide, forming a calcium bicarbonate solution in underground caverns.
A stalactite (UK: /ˈstæləktaɪt/, US: /stəˈlæktaɪt/; from the Greek stalasso, (σταλάσσω), "to drip", and meaning "that which drips") is a type of formation that hangs from the ceiling of caves, hot springs, or manmade structures such as bridges and mines. Any material which is soluble, can be deposited as a colloid, or is in suspension, or is capable of being melted, may form a stalactite. Stalactites may be composed of lava, minerals, mud, peat, pitch, sand, sinter, and amberat (crystallized urine of pack rats). A stalactite is not necessarily a speleothem, though speleothems are the most common form of stalactite because of the abundance of limestone caves. Read more Wikipedia
All images taken with Canon Eos 7d camera, in Loyang Koro Cave, Takengon Aceh.
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