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Most of the time, the collagen proteins had been leached out of the bone leaving them unsuitable for radiocarbon dating.

Leached bones are commonly white, brittle, or friable that may crumble when slight pressure is exerted on them.

Beta Analytic accepts extracted bone collagen for AMS dating, but it will be listed as “organics” in the final report instead of “bone collagen” due to the lab’s ISO/IEC 17005 accreditation limitations.

If Beta Analytic did not perform the chemical pretreatments and/or extractions, the lab cannot specifically testify as to the material that was dated because certain steps affecting the sample quality have been outside of its control and scope of its accreditation.

For bird and fish bones, please consult the lab for sufficient sample size.

Sample size of 2-4 grams may not be enough for AMS dating after pretreatment.

In theory, both organic and inorganic components can be dated.

However, a few additional days might be necessary in cases where proteins are weakly preserved or samples require extended communication with the lab.More in-depth information about old civilizations is also available due to radiocarbon dating results on bones. The organic portion is protein; the inorganic portion is the mineral hydroxyapatite, which is a combination of calcium phosphate, calcium carbonate, calcium fluoride, calcium hydroxide, and citrate.The protein, which is mostly collagen, provides strength and flexibility to the bone whereas the hydroxyapatite gives the bone its rigidity and solid structure.As for the type of bones best sent for AMS dating, the lab recommends sending good cortical bone from the larger bones of the body (femur, tibia, upper arm bone, jaw, skull plate and sometimes the ribs).Spongy bones like ball and sockets, vertebra, and the like do not tend to preserve well in harsh conditions and may not yield sufficient collagen for AMS dating.The Beta Analytic lab is located in Miami, Florida. Samples can be sent directly to Miami or to any of its sample forwarding offices worldwide.