Building or Place
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Number of Samples

A tufaceous limestone quarried from the 18th Century quarry for the Mission San Jose in San Antonio, Texas.

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A palm sized fragment of quartzite or crystalline limestone

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Repair fill-in cement with matching coat.

Sourced by Jose Hernandez on March 6, 2024.

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Repair edging from quadrant E2B in the East Wall

Sourced by Shixin Zhi on March 6, 2024.

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Repair edging from quadrant E3B in the East Wall

Sourced by Shixin Zhi on March 6, 2024.

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Repair edging from quadrant E2B in the East Wall

Sourced by Jose C. Hernandez on March 6, 2024.

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Repair edging from quadrant E2B in the East Wall

Sourced by Shixin Zhi on March 6, 2024.

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Repair plaster applied to lower section of East wall on southeastern corner. May be similar in composition and same campaign as that observed in the abutment walls outside the Sacristy.

Sourced by Jose C. Hernandez on March 6, 2024.

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Rhyolite Fragment

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Rhyolite Fragment

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A naturally occurring argillaceous (clay-rich) limestone or dolomite found in the earth that, when mined, heated (calcined), and ground, creates hydraulic cement without needing additives. Natural cement rock was popularized in the 19th century as Rosendale cement. It sets quickly and hardens underwater, making it ideal for historic canals and fortresses.

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Stone from the south interior wall of the Fleisher Art Memorial Sanctuary in Philadelphia, Pennsylvania

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Two fragments of sandstone

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Sandstone “Lilac bluestone” from Passack Vallet Stone and Slate Co Inc. of light-red color.

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Sandstone “Lilac bluestone” from Passack Vallet Stone and Slate Co Inc. of light-red color.

0

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