What condition is characterized by porous and brittle bones due to mineral deficiency?

The condition characterized by porous and brittle bones due to mineral deficiency is osteoporosis. This disease typically results from the loss of bone density, which leads to an increased risk of fractures and breaks. Osteoporosis is often associated with a deficiency of calcium and vitamin D, essential nutrients for maintaining healthy bone structure. As the density of bones diminishes, they become more susceptible to damage from everyday activities.

In contrast, other conditions listed do not primarily stem from mineral deficiencies leading to brittle bones. Arthritis generally involves inflammation of the joints rather than the deterioration of bone density itself. Rickets is primarily a childhood disease caused by vitamin D deficiency, affecting bone development, which differs from the more adult-related osteoporosis. Scoliosis refers to an abnormal curvature of the spine, not directly related to bone density or mineral deficiencies. Thus, osteoporosis is correctly identified as the condition linked to the issues described in the question.