Onyx At Boarding Schools

There are 5 boarding schools offering onyx as an extracurricular activity.
You can also view schools by extracurricular offered, browse our full boarding school directory or specify additional search criteria.
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Westtown School Photo - Main building
St. Andrew's School, DE Photo - Our 2100 acre campus is located in Middletown, DE just a short drive from Philadelphia, Baltimore, and Washington, D.C.
St. Paul's School Photo - SPS 1
Milton Academy Photo - Milton Academy is only eight miles from Boston's museums, schools and attractions, but it has the benefits of a 130-acre New England campus-with green quads and lots of fall foliage.
The Masters School Photo - The Masters School was founded in 1877.

Onyx Boarding Schools

  • School Location Grades Students
  • The Masters School
    The Masters School Photo - The Masters School was founded in 1877.
    (8)
    49 Clinton Avenue
    Dobbs Ferry, NY 10522
    (914) 479-6420
    Grades: 9-12 | 5-12 (day) | 499 students
  • Milton Academy
    Milton Academy Photo - Milton Academy is only eight miles from Boston's museums, schools and attractions, but it has the benefits of a 130-acre New England campus-with green quads and lots of fall foliage.
    (8)
    170 Centre Street
    Milton, MA 02186
    (617) 898-2227
    Grades: 9-12 | K-12 (day) | 722 students
  • St. Andrew's School, DE
    St. Andrew's School, DE Photo - St. Andrew's seminar style discussions, which include faculty and students seated at a central round table, are heard throughout English, history and language classes.
    (Episcopal)
    (13)
    350 Noxontown Road
    Middletown, DE 19709
    (302) 285-4231
    Grades: 9-12 | 306 students
  • St. Paul's School
    St. Paul's School Photo - SPS 1
    (Episcopal)
    (3)
    325 Pleasant Street
    Concord, NH 03301
    (603) 229-4700
    Grades: 9-12 | 544 students
  • Westtown School
    Westtown School Photo - Main building
    (Society of Friends)
    (44)
    975 Westtown Rd
    West Chester, PA 19382
    (610) 399-7900
    Grades: 9-12 | Pre-K-12 (day) | 372 students
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