In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[Q]: Bloodstone, agate, and onyx are chalcedonic varieties of this mineral. Other color variations arise from substituting atoms for silicon; iron for citrine and amethysts, titanium for the rose variety. When cemented it makes sandstone and when fused, silica glass. For ten points, identify this mineral composed of crystalline silicon dioxide.
[A]: Science


[Q]: The Clausius-Clapeyron equation assumes the change in this to be zero. Because this quantity is most useful when the substance in question is both isothermal and isobaric, a different quantity is used for explosive substances. An equation partially due to the namesake of this quantity gives the temperature dependence of this quantity for an ideal gas. A zero change in this quantity for a system implies that the system is in equilibrium, but a negative value for this quantity implies that a reaction is spontaneous. One may derive this by utilizing the Legendre transform on the internal energy of a system. For ten points, name this state function named for its American inventor, which measures the maximum amount of work attainable from a system, defined as enthalpy minus the product of temperature and entropy.
[A]: Science


[Q]: In one of this authors poem, the speaker thinks he sees "the angel there that holds the crown" claiming to "know thy glittering face. " That poem's speaker believes he will perish "to-night, a quarter before twelve. " In another poem, the speaker imagines a man as "lean as death" who rode across a "wither'd heath" and stops at a hotel addressing a "Wrinkled ostler, thin and grim," "bitter barmaid, waning fast" and "slipshod waiter lank and sour. " That poem begins with a man getting off a winged horse and going inside a palace with the child of sin, while that first poem is written in the style of Robert Browning and describes a (*) saint that had stayed on a column for three years. Another poem of his describes a figure who "knows not what the curse may be / and so she weaveth steadily," and describes an "island in the river flowing down to Camelot. " For 10 points, name this author that included images of "long fields of barley and rye" in his "The Lady of Shallot. "
[A]:
Literature