Editing Trinitite (section)

==Composition==
[[File:Trinitite backlight.jpg|thumb|left|A near-hollow sample of trinitite backlit to show light passing through the material]]
[[Image:Trinityglassactivity.png|thumb|upright=1.8|Levels of radioactivity in the trinity glass at the time of explosion from two different samples as measured by gamma spectroscopy on lumps of the glass<ref name="Radioactivity in Trinitite six decades later">{{cite journal|first1=P. P. |last1=Parekh |first2=T. M. |last2=Semkow |first3=M. A. |last3=Torres |first4=D. K. |last4=Haines |first5=J. M. |last5=Cooper |first6=P. M. |last6=Rosenberg |first7=M. E. |last7=Kitto |journal=Journal of Environmental Radioactivity |year=2006 |volume=85 |issue=1 |pages=103–120 |title=Radioactivity in Trinitite six decades later |doi=10.1016/j.jenvrad.2005.01.017 |pmid=16102878 |bibcode=2006JEnvR..85..103P |citeseerx=10.1.1.494.5179}}</ref>]]
The chaotic nature of trinitite's creation has resulted in variations in both structure and composition.<ref name="syntheticmeltglass"/> The glass has been described as "a layer 1 to 2 centimeters thick, with the upper surface marked by a very thin sprinkling of dust which fell upon it while it was still molten. At the bottom is a thicker film of partially fused material, which grades into the soil from which it was derived. The color of the glass is a pale bottle green, and the material is extremely [[Vesicular texture|vesicular]] with the size of the bubbles ranging to nearly the full thickness of the specimen."<ref name="Ross" /> The most common form of trinitite is green fragments of 1–3&nbsp;cm thick, smooth on one side and rough on the other; this is the trinitite that cooled after landing still-molten on the desert floor.<ref name="titanium">{{Cite Q |Q124711384 |author-last1=Bailey |author-first1=Daniel J. |author-last2=Stennett |author-first2=Martin C. |author-last3=Ravel |author-first3=Bruce D. |author-last4=Crean |author-first4=Daniel E. |author-last5=Hyatt |author-first5=Neil C.}}</ref><ref name="vesicledistro" />

Around 30% of trinitite is void space, although quantities vary greatly between samples. Trinitite exhibits various other [[Crystallographic defect|defects]] such as cracks.<ref name="syntheticmeltglass" /> In trinitite that cooled after landing, the smooth upper surface contains large numbers of small vesicles while the lower rough layer has lower vesicle density but larger vesicles.<ref name="vesicledistro" /> It is primarily alkaline.<ref name="titanium" />

One of the more unusual isotopes found in trinitite is a barium [[neutron activation]] product, the [[barium]] in the Trinity device coming from the slow [[explosive lens]] employed in the device, known as [[Baratol]].<ref name="Radioactivity in Trinitite six decades later" /> [[Quartz]] is the only surviving mineral in most trinitite.<ref name="syntheticmeltglass" /> Trinitite no longer contains sufficient radiation to be harmful unless swallowed.<ref name="smithmag" /> It still contains the [[radionuclides]] [[Americium-241|<sup>241</sup>Am]], [[Caesium-137|<sup>137</sup>Cs]] and [[Isotopes of europium|<sup>152</sup>Eu]] owing to the Trinity test using a [[plutonium bomb]].<ref name="titanium" />