While wandering the corridors of another interminable art museum, I was arrested by a question. Why hadn't I learned stone sculpture? You undoubtedly know people who paint or draw. Sculpture is no less accessible, requiring but a hammer, chisel, and volume of stone (safety glasses, too, of course). Stones are everywhere. Free! Heft and fragility—never delightful features of a financial asset—probably limit the popularity of stone sculpture at the pinnacles of the art market, but otherwise, stone sculpture's rarity is to me a conundrum.

How to Begin

Arthar Jaber's YouTube tutorials are a comprehensive introduction. Jeff Powell's materials are also useful. You might also consult (per Arthar's advice) The Materials and Methods of Sculpture, Modeling and Sculpture, and Modeling and Sculpting the Human Figure.

How to Begin (for the Impatient and Wealthy)

Only a plebian need concern themselves with hand tools. If you're well-capitalized, purchase a six-axis robotic arm, affix an endmill, and go to work. For inspiration, see this NYT article. Complete systems are available for purchase. Alternatively, you might acquire a used arm and dedicate a bit of time to finding suitable CAM. You need not be physically fit, and, if you're sited near a vein of marble, can bring your creations to the masses. For me, however, stone is meant to be respite from technology. Imagine yourself atop a meadowed bluff, courting the midday sun, forming in solitude the final curls of a magnificent lion. What better escape from our sea of screens? See Rodin for inspiration.

As such, I procured a chisel set from Harbor Freight and the remaining tools from my father's workshop.

A starting toolset.
Figure I: A starting toolset.

I then went in search of stone. The Romans drew stone of astonishing variety from across the empire. Specimen marble was aggregated (often into pietre dure tabletops) beginning in the 16th century for the Medici court and more recently for collectors on the Grand Tour. I map the Roman quarries and, as possible, link the stones they yielded below. In Egypt, I also map the ancient quarries, many of which were coopted by the Romans. The industrious reader can, using these data, chart an expedition of stone scavenging sufficient to construct any masterpiece.

Roman and Egyptian stone

Egypt had been quarrying stone for three thousand years by the time Rome arrived. Harrell and Storemyr count just over two hundred ancient quarries, from the Late Predynastic into the Roman period: limestone from the Eocene cliffs along the Nile between Cairo and Isna, for the pyramids and tombs; sandstone from Isna southward, which from the late Middle Kingdom built the temples of the south; and granite and granodiorite at Aswan, for obelisks, colossi and sarcophagi. The ornamental hardstones came from the Red Sea Hills of the Eastern Desert, and it was there that Rome opened quarries of its own, at Mons Porphyrites for the purple porphyry and Mons Claudianus for a gray tonalite gneiss, and shipped their stone across the empire. The last ninety-two stones below are Harrell's scans of polished samples from the quarries of Egypt and Nubia.

Russell 2013, the Roman world Harrell and Storemyr 2009, Egypt

Roman world from Russell, B. J. (2013), Gazetteer of Stone Quarries in the Roman World, version 1.0, Oxford Roman Economy Project (PDF), which collects the excavation reports and petrographic studies behind each site. Coordinates locate the nearest named settlement or the approximate area of the workings. Egyptian locations are from Harrell, J. A. and Storemyr, P. (2009), ‘Ancient Egyptian quarries — an illustrated overview’, in QuarryScapes (Geological Survey of Norway, Special Publication 12): 7–50, whose database reaches back to the Late Predynastic and so well before Rome, and from Harrell's own Archaeological Geology of Ancient Egypt.

Italian specimen marble tabletop (Sotheby's).
Figure II: Italian specimen marble tabletop (Sotheby's).
Composite sculpture (Vespasian).
Figure III: Composite sculpture (Vespasian).

Regrettably, the stone of Cambridge is argillite and conglomerate, sedimentary rock unsuitable for carving. However, the bedrock of Massachusetts is more diverse. The nearest marble is in Vermont.

Geologic map of Massachusetts. Find your state's bedrock or surficial map here.
Figure IV: Geologic map of Massachusetts. Find your state's bedrock or surficial map here.
Figure V: Global geological map (Macrostrat). Data under CC BY 4.0; cite Peters, S. E. et al. (2018), ‘Macrostrat: a platform for geological data integration and deep-time Earth crust research’, Geochemistry, Geophysics, Geosystems 19, doi:10.1029/2018GC007467.

Fortunately, stone is often imported for building, and I was able to acquire some suitable specimens for initial practice. I got some strange looks—I suppose the reason men my age typically procure stones is to weigh down bodies of which they are disposing—but I like to think that I don't look too much like a serial killer.

My first rock.
Figure VI: My first rock.

Identifying rock is not trivial; birders and lepidopterists, beware. Fortunately, fate distributes our interests with abandon, so a small but passionate community of "rockhounders," derivative of the prospecting community, exists in many areas of the world.

As usual, Rodin provides some inspiration. I prefer unfinished sculpture, lost somewhere between natural and human form.

Figure VII: Atlas Slave, Michelangelo (Galleria dell'Accademia, Florence).
Figure VIII: Awakening Slave (Prigione che si ridesta), Michelangelo (Galleria dell'Accademia, Florence).
Figure IX: La Pensée (Thought), Rodin (Musée d'Orsay, Paris).
Figure X.

Bibliography

  • Harrell, James A. 2013. “Ornamental Stones.” In UCLA Encyclopedia of Egyptology, edited by Willeke Wendrich. Los Angeles: University of California, Los Angeles. https://escholarship.org/uc/item/4xk4h68c.
  • Harrell, James A. n.d. Archaeological Geology of Ancient Egypt. Toledo, OH: University of Toledo, Department of Environmental Sciences. http://www.eeescience.utoledo.edu/Faculty/Harrell/Egypt/AGRG_Home.html.
  • Harrell, James A., and Per Storemyr. 2009. “Ancient Egyptian Quarries: An Illustrated Overview.” In QuarryScapes: Ancient Stone Quarry Landscapes in the Eastern Mediterranean, edited by Nizar Abu-Jaber, Elizabeth G. Bloxam, Patrick Degryse, and Tom Heldal, 7–50. Geological Survey of Norway Special Publication 12. Trondheim: Geological Survey of Norway. https://static.ngu.no/upload/Publikasjoner/Special%20publication/SP12_s7-50.pdf.
  • Lanteri, Edouard. 1985. Modelling and Sculpting the Human Figure. New York: Dover.
  • Oxford University Museum of Natural History. n.d. Corsi Collection of Decorative Stones. Oxford: Oxford University Museum of Natural History. https://www.oum.ox.ac.uk/corsi/.
  • Peters, Shanan E., Jon M. Husson, and John Czaplewski. 2018. “Macrostrat: A Platform for Geological Data Integration and Deep-Time Earth Crust Research.” Geochemistry, Geophysics, Geosystems 19 (4): 1393–1409. https://doi.org/10.1029/2018GC007467.
  • Rich, Jack C. 1988. The Materials and Methods of Sculpture. New York: Dover. First published 1947 by Oxford University Press.
  • Russell, Ben. 2013. Gazetteer of Stone Quarries in the Roman World. Version 1.0. Oxford: Oxford Roman Economy Project. http://www.romaneconomy.ox.ac.uk/databases/stone_quarries_database/.
  • Toft, Albert. 2005. Modelling and Sculpture: A Guide to Traditional Methods. Mineola, NY: Dover. First published 1911.