Artificial marble composition and artificial marble using same

An artificial marble composition, comprising

• (A) 100 parts by weight of an acrylic resin syrup,
• (B) 150 parts by weight to 250 parts by weight of an aluminum-based inorganic filler,
• (C) 8 parts by weight to 100 parts by weight of a phosphorus-based flame retardant, and
• (D) 35 parts by weight to 100 parts by weight of a magnesium-based flame retardant, wherein
• the (C) phosphorus-based flame retardant comprises melamine/ammonium polyphosphate,
• the (D) magnesium-based flame retardant comprises a mixture of hydromagnesite and huntite, and
• based on (A) 100 parts by weight of the acrylic resin syrup, a sum of the (B) aluminum-based inorganic filler, the (C) phosphorus-based flame retardant, and the (D) magnesium-based flame retardant is less than or equal to 300 parts by weight,
• wherein the (B) aluminum-based inorganic filler comprises a mixture of a first aluminum-based inorganic filler having an average particle diameter of 50 μm to 120 μm and a second aluminum-based inorganic filler having an average particle diameter of 5 μm to 40 μm.