The Collaborative International Dictionary of English v.0.48:

Sandarach \San"da*rach\, Sandarac \San"da*rac\,, n. [L.
   sandaraca, Gr. ?.]
   1. (Min.) Realgar; red sulphide of arsenic. [Archaic]
      [1913 Webster]

   2. (Bot. Chem.) A white or yellow resin obtained from a
      Barbary tree (Callitris quadrivalvis or Thuya
      articulata), and pulverized for pounce; -- probably so
      called from a resemblance to the mineral.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Thyine wood \Thy"ine wood`\ [Gr. ? ?, fr. ?, adj., pertaining to
   the tree ? or ?, an African tree with sweet-smelling wood.]
   (Bot.)
   The fragrant and beautiful wood of a North African tree
   (Callitris quadrivalvis), formerly called Thuja
   articulata. The tree is of the Cedar family, and furnishes a
   balsamic resin called sandarach. --Rev. xviii. 12.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Callitris quadrivalvis
    n 1: large coniferous evergreen tree of North Africa and Spain
         having flattened branches and scalelike leaves yielding a
         hard fragrant wood; bark yields a resin used in varnishes
         [syn: sandarac, sandarac tree, Tetraclinis
         articulata, Callitris quadrivalvis]