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polished kambaba jasper stone , a natural rock from MadagascarKambaba Stone | Stone Mania
polished kambaba jasper stone , a natural rock from Madagascar
polished kambaba jasper stone , a natural rock from Madagascar

Kambaba Jasper Stone

Product Code: KAJA



Polished Kambaba Stone from Madagascar


Kambaba jasper is a distinctive material from Madagascar that tends to be quite easy to identify because of its rich green colour and black spherical markings. Also known known as Crocodile Jasper and Green Stromatolite Jasper, it's a popular lapidary material that's found nowhere else in the world.

Having researched kambaba jasper over many years we have always been led to believe that it was a stromatolite which is a sedimentary rock formed from blue-green algae.  We have recently discovered however that much of what we thought we knew about this stone is actually inaccurate.  

What we don't want to do is to make this article unnecessarily complicated and possibly even boring for those who are not interested in the geological make up of rocks and minerals but at the same time, it's important that information on materials featured in our collection is completely accurate.  The following paragraph explains briefly what we now know about this rock but this is only half of the story.  For everything there is to possibly know about kambaba also known locally in Madagascar as kabamba, take a look at our full article.

Kambaba jasper is not actually a true variety of jasper nor is it a stromatolite so it's not even a sedimentary rock.  The material is in fact volcanic which makes it an igneous rock.  Its green colouration is caused by the presence of quartz which features orbs of the mineral feldspar embedded with aggregates (structures formed from a mass of fragments/particles loosely compacted together) made up of tiny needles of amphibole which is an important group of mostly dark-coloured minerals which form prism or needle-like crystals. From a geological perspective a more accurate name would be kambaba stone.

A wonderfully distinctive yet fascinating stone that's caused no end of confusion.  

Weight (grams) : 136.9
Size (cms) : 4.7 x 4.3 x 4.1




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